I'm all for shitting on jax and dragging him to the guillotine for how he treated my blorbos. I like to list how wrong jax x character ships are. And you can agree with me or disagree with me.
We all have our preferences.
If I eat ice cream with a straw, that's my choice. You can ask me why I'm doing that, how I have the patience to do that, but you know what you can't do? Snatch my straw and try to force a spoon or fork into my hand and scream at my face about how counterproductive it is.
There is an age old saying in fandoms. Don't like Don't read. Your kink (or ship) is not my kink (ship) and that's okay.
I get it, we all see something, an opinion or an argument that's irrevocably bonkers. The best we can do is ignore it, if it still bothers you, make a general post ranting about it, unrelated to the original post. (Even if the OG post and op are spewing racist, qeerphobic and personal hate, I - a poc usually ignore it because engagement = attention = arguing with the wall. Instead I make a counterargument, separately it usually gathers all the like-minded people and we can have nice conversations)
It's easy to be hurtful when you think your actions have no consequences, taking out your frustrations on unsuspecting individuals. But when a show like TADC has such an unsatisfactory ending (personally), the fandom should stick together to share out fanarts and fanfic and work as a community. (We should also hold hands, sing dance, braid hairs, and make flower crowns)
TL;DR: Spread love (or indifference) not hate (or do it somewhere else, without hurting anyone intentionally), KINKTOMATO, Don't like? Don't interact