I think one also has to factor in the psychological costs, though, to citizens that worry about gun violence. I tend to think statistically like you, so I'm not

I think one also has to factor in the psychological costs, though, to citizens that worry about gun violence. I tend to think statistically like you, so I'm not particularly concerned about getting shot. But my mother certainly doesn't think that way, and no amount of showing her evidence is going to cause her not to worry while out about "some maniac" showing up with a gun. And there's also a low-level distrust that pervades society when one does know the statistics and realizes how many people around them on an average day are likely to be packing a machine that can kill merely by being pointed at somebody and a button being pressed. "An armed society is a polite society" seems like a crazy statement, but the kernel of truth it does have is that an armed society is more distrustful of others (less "social") than an unarmed one.