Yserbius, you may be right, but the reality is that you will never change the culture of the entire country. A huge portion of the country is pro-gun, and the number of guns in circulation is staggering (and talking about gun-control only causes that number to increase).
A simple, practical solution is to get rid of gun-free zones. Most mass shootings would be stopped within seconds (if not prevented altogether) if law-abiding citizens were carrying guns.
I’m not talking about gang violence. That’s a different issue altogether