On your comments about Jack: ye-es, in the sense that Jack is a character who definitely deserved better than he was treated by the characters. The way Dean especially treats him reflects very badly on Dean, no question. But, speaking as a viewer, I think the perspective needs to shift a little bit.
To me, Jack is Dawn from Buffy, or Scrappy Doo. He’s an (in my opinion) irritating kid who is introduced out of nowhere to be both super vulnerable and super OP, and the jeopardy is centered around him in a way that has nothing to do with his actual character or relationships. He’s mostly around to be cute and to solve or create problems — he never has any firm character arcs or goals of his own, nor any deeper purpose in the meta narrative. In this way, he’s a miss for SPN, which focuses heavily on conflicts as metaphors for real life.
Mary fits so much better in that framework, and introducing her as a developed, flawed person works really well with the narrative. It is easy for us to care about Mary, both as the dead perfect mother on the pedestal and as the flawed, human woman who could not live up to her sons’ expectations. That connection is built into the core of SPN, and was developed over years, even before she was a character. When she was added, she was given depth and nuance organically, and treated as a flawed, complex character rather than as a plot device or a contrivance. She was given a voice and independence, and became a powerful metaphor for developing new understandings of our parents in adulthood, as well as an interesting and well-rounded character. You care that she’s dead, not just because Sam and Dean are sad, but for the loss of her development and the potential she offered. So, in that sense, I think a lot of people were frustrated that she died essentially fridged for a second time, and especially in service of the arc of a weaker character.
And like, you’re right, no one can figure out if Jack is a toddler or a teenager. He’s both and he’s neither, because he’s never anything consistently and his character arc is always “whatever the plot needs it to be.” Every episode is different. Is he Dean’s sunny opportunity to be a parent and make up for his dad’s shitty parenting? Yes! Is he also Dean’s worst failure and a reminder that he has done many horrible things, including to “innocent” children? Yes! Is he Cas’s child? Yes! Is he Dean’s child? Yes! But also, no! Is he Sam’s child? Yes! Is he a lonely teenager who does terrible things? Yes! Is he a totally innocent little lamb who doesn’t get why what he is doing is wrong? Yes! Is he the most powerful being in the universe? Yes! Does he need everyone to take care of him? Yes! Is he just along for the ride? Yes! Is he responsible for his actions? Kinda??? Sometimes??? What is he???
Mary as a character is narratively cohesive and fleshed-out. Jack is a mishmash of confusing whatever’s that all add up to a frustrating plot device with no consistent traits to latch on to. Everything that fans like about him (cute outfits, gender play, well-developed parental bonds with the characters) is fanon. So, yes, the narrative prioritizes Mary. Many fans prioritize Mary, at least enough that Dean’s most heinous acts barely register. To the narrative (not to Cas, which is a totally different situation), Jack is only barely more of a character than Emma Winchester, who Sam killed without uproar seasons earlier. He’s been around longer, but he’s equally not really real.
I debated on responding to this because, to tell the truth, I think we fundamentally disagree on a number of subjects and, as they say, true insanity is arguing with anyone on the internet. However, you spent a lot of time on the above and I feel it's only fair to say my thoughts, even if I don't believe it will sway you any more than what you said changed my opinions.
I'm assuming this was in response to this post regarding how Jack's accidental killing of Mary was treated so severely by the brothers, particularly Dean, because it was Mary and, had it been a random character like the security guard in 13x06, it would have been treated far differently. However, then the argument becomes less about the reaction of the Winchester brothers to this incident and more the value of Jack or Mary to the audience.
I believe we need to first admit that both characters are inherently archetypes—Mary as the Madonna character initially then, later, as a metaphor for how imperfect and truly human our parents are compared to the idol we have as children, and Jack as the overpowered child who is a Jesus allegory by the end. Both have a function within the story to serve the Winchester brothers, through whose lens and with whose biases we are meant to view the show's events. We also need to admit that the writers didn't think more than a season ahead for either character, especially since it wasn't initially supposed to be Mary that came back at the end of season 11 but John, and they only wrote enough for Jack in season 13 to gauge whether or not the audience would want him to continue on or if he needed to be killed off by the end of the season. Now, I know we curate our own experiences online which leads to us being in our own fandom echo chambers, however it is important to note that the character was immediately successful enough with the general audience that, after his first episode or two, he was basically guaranteed a longer future on the show.
I have to admit, I’m not entirely sure why the perspective of how his character is processed by some audience members versus others has any bearing on the argument that he deserved to be treated better overall by the other characters especially when taking their own previous actions in mind. I’m not going to tell you that your opinion is wrong regarding your feelings for Jack. It’s your opinion and you’re entitled to it, it harms no one to have it and express it. My feelings on Jack are clearly very different from your own, but this is really just two different people who processed a fictional person in different ways. I personally believe he has a purpose in the Winchesters’ story, including Castiel’s, as he reflects certain aspects of all of them, gives them a way to explore their own histories through a different perspective, and changes the overall dynamic of Team Free Will from “soldiers in arms” to a family (Misha’s words). In the beginning he allows Sam to work through his past as the “freak” and powerful, dangerous boy wonder destined to bring hell on earth. With Dean, his presence lets Dean work through his issues with John and asks whether he will let history repeat itself or if he’ll work to break the cycle. Regarding Cas, in my opinion he helps the angel reach his “final form” of a father, member of a family, lover and protector of humanity, rebellious son, and the true show of free will.
From strictly the story, he has several arcs that work within themes explored in Supernatural, such as the argument of nature versus nurture, the question of what we’re willing to give up in order to protect something or someone else and how ends justify the means, and the struggle between feeling helpless and powerless versus the corruptive nature of having too much power and the dangerous lack of a moral compass. His goals are mentioned and on display throughout his stint on the show, ones that are truly relatable to some viewers: the strong desire to belong—the need for family and what you’ll do to find and keep it.
With Mary, we first need to establish whether the two versions of her were a writing flaw due to the constant change in who was dictating her story and her relationship to the boys, which goes against the idea that her characterization was cohesive and fleshed-out but, rather, put together when needed for convenience, or if they both exist because, as stated above, we are seeing the show primarily through the biased lens of the Winchester brothers and come to face facts about the true Mary as they do. Like I said in my previous post, I don’t dislike Mary and I don’t blame her for her death (either one). However, I do have a hard time seeing her as a more nuanced, fleshed-out character than Jack. True, a lot of her problems are more adult in nature considering she has to struggle with losing her sons’ formative years and meeting them as whole adults she knows almost nothing about, all because of a choice she made before they were born.
However, her personal struggles being more “mature” in nature (as they center primarily on parental battles) doesn’t necessarily mean her story has layers and Jack’s does not. They are entirely different but sometimes interconnected in a way that adds to both of their arcs, like Mary taking Jack on as an adoptive son which gives her the moments of parenting she lost with Sam and Dean, and Jack having Mary as a parental figure who understands and supports him gives him that sense of belonging he had just been struggling with to the point of running away while he is also given the chance to show “even monsters can do good”.
I’d also argue that Jack being many ages at once isn’t poor writing so much as a metaphor for how, even if you’re forced to grow up fast, that doesn’t mean you’re a fully equipped adult. I don’t want to speak for anyone else, but I believe Jack simultaneously taking a lot of responsibility and constantly trying to prove to others he’s useful while having childish moments is relatable to some who were forced to play an adult role at a young age. He proves a number of times that he doesn’t need everyone to take care of him, but he also has limited life experience and, as such, will make some mistakes while he’s also being a valuable member of the group. Jack constantly exists on a fine line in multiple respects. Some may see that as a writing flaw but it is who the character was conceived to be: the balance between nature or nurture, between good and evil, between savior and devil.
Now, I was also frustrated Mary was “fridged” for a second time. It really provided no other purpose than to give the brothers more man pain to further the plot along. However, this can exist while also acknowledging that the way it happened and the subsequent fallout for Jack was also unnecessary and a sign of blatant hypocrisy from Dean, primarily, and Sam.
And, yes, Jack can be different things at once because, I mean, can’t we all? If Mary can be both the perfect mother and the flawed, independent, distant parent, can’t Jack be the sweet kid who helps his father-figures process their own feelings on fatherhood while also being a lost young-adult forcing them to face their failures? Both characters contain multitudes because, I mean, we all do.
I can provide articles or posts on Jack’s characterization and popularity along with Mary’s if needed, but for now I think this is a long enough ramble on my thoughts and feelings. I’m happy to discuss more, my messenger is always open for (polite) discussion. Until then, I’m going to leave it at we maybe agree to disagree.