people that use this argument are the kind of people that argue things that have zero facts behind them
people are stupid and sometimes you just can't do anything about that. its a really easy cop out for parents that don't wanna admit they are just shit and ignore obvious signs in their children that there is something wrong. video games don't make normal brains violent. just ends up that sometimes violent people end up playing video games.
your mom may give you shit for spending a lot of time on the computer. but one day you are going to make something of yourself and it will probably have something to do with that computer.