Instead of fretting over whether your guns will be taken or not, why not try to come up with a viable alternative?
It's simple, END THE WAR ON DRUGS! Stop separating fathers from their children over non violent crimes and watch the poverty/gang violence plumit. Prevent people from being able to defend themselves while also doing nothing about the underlying cause of the violence, watch it get worse.
As for why mass shootings are the focus, isn't it obvious? More are occurring in schools these days than ever before. Needless people have died because the rest of the population can't get its act together and find a viable solution to what has seemingly become an epidemic.