Idk, I’m not a psychologist, but I have looked at studies on video games and there hasn’t been a causal link between violent video games and IRL violence. You’d think that with so much focus on age ratings and whatnot that we would’ve found something, yet that’s not the case. My understanding is the largest contributing factors are childhood abuse, social groups (esp. anonymous online groups), and bullying. I suppose some of that could happen in video games (i.e. in-game chat), but then it’s not the game itself causing violence, but the interaction w/ other players.

So no, I haven’t seen any evidence that violent video games contribute to anything. The best argument is that people who have violent tendencies tend to play violent video games, but the reverse has little to no evidence.