I know this topic has come up a few times in the past, and I did a search, and came across these threads, among others, which I will quote in order to lend some context to the post:
I found the discussion around how violent games and movies are "just an escape" a little short of the mark. Movies introduce concepts of violence that are totally outside the realm of practical experience for many people, video games do the same but they give you agency and an active role within the game world.
Buddhism is in some traditions strongly associated with the idea that by teaching the mind you can approach enlightenment. If you create media experiences that teach you and train into you the wrong view of the world, the wrong reflexes and habits, are you not moving further away from enlightenment? Once it becomes a reflexive instinct to hit things in games one would suspect it's gone the wrong way.
The attachment aspect bothers me as well. As does the influence on world view. Violent movies, games and even in the news media creates an image of the world that is not true to life. Most people's lives are peaceful, surely there is no need to fill your mind with the kind of violent content that perhaps is only seen by one police officer in ten.
Other perspectives I found interesting from the threads:
I'd be very interested in any further thoughts people might have had since the last time it was discussed...