No! We aren't done with you yet.
guns are to blame, and not the choice of human decision
Maybe not "to blame" but they are certainly a powerful facilitator.
There is also the fact that a great deal of mystique has accrued to guns and this can make them very attractive to people who are emotionally weak. Even if screwdrivers were just as effective as weapons, they would not have this attraction.
The problem, again, is that American society has trouble seeing guns as objects. I bet there isn't so much mystique around guns in Switzerland. Maybe it comes from American society being so Christian; there is an unresolved, unconscious tension between guns and the commandment not to kill.
Dr. Freud signing out.