See, a thought has been on my mind for some time now and I have to get it out of my system. This one is a super controversial take and I might get hated on for this one, but it's important that I say it.
Johnny Rook was not a good father, but he wasn't a terrible father either.
I have seen more people hate johnny rook than I've seen hate for Sebastian, which in my opinion is kind of insane. So hear me out.
So we all know Kit has major issues regarding security and intimacy because Johnny failed to show his love towards Kit, and I understand that that was a crappy way of raising your son but Johnny's character is way more complex to keep it till that. We need to talk about how he was a underground criminal who became so because be was kicked out by his family when he developed the Sight. He was basically abandoned by the people closest to him. From that point onwards, he went around collecting information and engaging himself with minor criminal operations, till he met Rosemary, the love of his life, at the age of 17(estimated) and was on the run with her for some years.
So if my calculations are correct, since Johnny died at 45, he had Kit at 30 and had thus known and been with Rosemary for atleast 13 years. Based on that, he must've developed some sort of deep rooted attachment and intimacy with her. But Kit's birth led to them seperating to keep their son safe. Now, Johnny must have developed some issues because he had faced his loved ones abandoning him throughout his life, probably had abandonment issues which led to him becoming reluctant of forming deep emotional ties with anybody or outwardly giving his heart to others. I don't think he blamed Kit for losing Rosemary; if that was the case, he would have shown hostility towards him on multiple occasions but as we know, Kit and Dad were never a yelling, fighting, beating family. In fact I believe Kit was comfortable around his father, based on the living room scenes and even his first scene in the books( I am not talking about comfort such as being hugged by him, more so being around him).
He had initially sent Kit to school but pulled him out after his True Sight manifested and he watched two werewolves tearing each other apart in broad daylight. After that Johnny deemed it too dangerous to send Kit to school and kept him at home but Johnny started taking him with him to the Shadow Markets. His way of connecting with his son was by teaching him to pick locks and people's pockets. His way of praising Kit was also based on his abilities as a wouldbe con man. This was Johnny's way of showing regard and affection for his son, which people tend to think of as his lack of proper love for him which is not the case. For Johnny who was kicked out by his own parents, and who raised himself on the streets, he never learned the socially acceptable way of showing love but it manifested into him trying to appreciate Kit for the things Johnny had been raised doing and did wellâpetty crime. In the same way that Dads praise their sons for successfully following in their footsteps while playing a sports or business, Johnny also had genuine pride over Kit's natural abilities. It may seem odd to the readers, but I don't assume Johnny thought of petty crimes as a big deal. It was a way of life for him, even with Rosemary.
I also don't think he felt obligated to take care of Kit just for Rosemary's sake. He genuinely tried to be at least physically present throughout his son's life. He did care. When he took Kit to the Shadow market, he allowed him to roam about as he wished and get to know the people. I don't think he intentionally tried to isolate him. Contrary to popular belief Kit wasn't locked in the basement for the whole day, but was told to stay there when clients came over, which was reasonable if you think about the danger of clients coming to know he had a son and holding that against him, even more so if you think about his meeting with Julian and Emma and how Ty had held Kit had knifepoint. We knew Ty wouldn't hurt Kit but Johnny didn't, did he? He just knew Shadowhunters were trying to threaten his son.
Obviously that does not excuse him from keeping Kit at home all the time and kindof ruining his childhood but lets move on...
He tried his best to protect his son, even if his methods weren't exactly conventional. All in all I feel that Johnny Rook had developed some serious issues since his youth which had prevented him from showing Kit love and affection openly. He wasn't exactly the best example of a father figure and his way of dealing with Kit and his issues were horrible but considering where he came from, his criminal background, I think it's a miracle how hard he tried.
It's also very important to realise that it is very easy to villanize a character we don't even know well enough but Cassandra Clare has been known to write Complex and flawed characters. This may seem absurd but maybe if Johnny had been alive for longer and we had got to see him more, he may have had parallels with Jocelyn. On top of that, Kit did not hate his father, he was angry and disappointed certainly. Especially after seeing what a family's love can truly mean and be expressed as. The more Kit spent time with the Blackthorns and Carstairs he realised the flaws in his relationship with his father. But you can't really compare, can you? The Rooks lived a completely different life. Kit misunderstood that love could only be expressed in the way that healthy, happy family did, but it isn't so simple. Maybe if we had more perspective on Johnny we would come to know more about him but as of the flashbacks in gotsm, he does not seem like a bad person. At least for me, reading tda, Johnny did not seem like a terrible father, only a father who did not know how to be one, but one who loved his child nonetheless.
I hope my point went across even if just a little. I am not trying to defend him, no matter what it seems. This is a character study in trying to understand why he was the way he was. We often don't understand how generational trauma can present itself, not only thorough cycles of abuse but also through passing down of emotional baggage unknowingly.
This was my way as a psych student of seeing Johnny as a character, apart from his part as just a father to explain his role as one.