And why are they strictly structured around guns? There are many other weapons used to harm many people at the hands of one.
True, but guns are used far more often. It's illogical to ban knifes, because there, are many, many non-lethal uses for knifes. Guns however (hunting, self-defense, or otherwise) are meant to do one thing: kill. I'm not advocating we can all guns either. There are many people in this country who still hunt for sustenance and/or sell the meat.
Guns don't seem to be the reason for this, in fact it looks like the relationship of homicides per guns owned is inversely correlated.