I don't get why you chose this picture.
I don't believe that video game make kids violent. Some actually help kids with motor skills. There is no reason to ban violent videogames.
There is no point in banning it. Lets say that someone murdered another guy and the guy who murdered him ate eggs for breakfast. Might as well ban eggs because THAT might have caused him to kill him. Infact, Violence has gone down in the past years. Whoever is trying to ban them, your argument is invalid.
Absolutely not, there is no evidence supporting that violent video games cause violence.