Well, as it's already been pointed out, I believe that ultimately, it's the individual. Claiming that video games, movies, television, music, and even literature cause violence completely ignores that it's an individual's disposition, experience, environment, education, and state of mind that influence a person's actions.
Case in point... my younger brother has been a video game addict since he was a little kid. He's 15 now, and has probably played most every shoot 'em up type game known to man (OK, I'll admit it, I've played a couple in my life, too
). Yet, when it comes to firearms, because he's grown up exposed to them, he's very responsible and knows how to handle them and how to conduct himself. He's pro-RKBA, too. Video games did not turn him into a sociopathic killer, nor did being handed a firearm.
One of my friends at university had never even handled a firearm before last year. He grew up in a somewhat sheltered environment and his only exposure to firearms was through electronic media. Add this to the fact that he had an already slightly anti-RKBA attitude and I had a great candidate for an educational range trip. I took him to the shooting range, just with my Ruger 10/22, and we spent a few hours there. He quickly realized that being able to put down hundreds of goblins at once on his Playstation did not translate into shooting ability. And naturally, it changed his view on RKBA.
I think that it's important for people to counterbalance the suspension of reality they experience in video games with real-life experience. If your only experience of firearms comes through video games and television, it seems natural that you will have an unrealistic and distorted view of their use and capabilities. Having at least a basic education when it comes to firearms gives you a much more realistic perspective. No shooter I know
doesn't see a shoot 'em up game or action movie and say something like "No way that [insert gun here] can do that!".
-Nic