There's no guilt like white guilt.
Taking guns away from law abiding citzens because of a few crazy people is like taking fast food away because fat people abuse it.
This isn't even close to a good comparison. Eating badly can only kill yourself, or be harmful if you're pregnant or giving birth (and that is really going into a greyzone of what is personal responsibility) a guy with a gun can shot someone else than themselves.
TL;DR: Fat food can eventually kill the person eating, guns can kill other people than the wielder.