Why not see it as a bigger culture rot? Guns and violence is glorified by games, music, tv. It might a sign, not a cause. Also, a lot of these shooters talk about high score (kill count), a lot of these extremists (right wing) and tied to gaming communities etc. So it's a lot to think about, people like to nitpick things they like and say it doesn't have anything to do with it because it does not affect me.