I have played videogames my entire life. I still have my sega master system and every worthy system since. Currently i am using my PS3 to type this post. I am the most passive person i know, even if you punched me in the face, i would not fight back. Some people are just born more violent than others. others it is the way they were raised. do you think somalian pirates play GTA: Somalia edition
and so they became more prone to violence. Poverty and lack of a supporting community are suspect, as for violence in a first world country greed and lust for power are the culprits. the media just makes the world look more violent now but in actuality we were clubbing each other to death since the dawn of man.
sorry to say this but beliefs also get more people killed than any other reason. dont "believe" have an idea.