There's more to it than just pro and anti gun sides.
It's a spectrum that fades gradually from one extreme to the other.
Why do Americans insist on seeing everything as Us vs Them, black vs white, (our) Good vs (their) Evil?
I am not anti gun, I'm sure you've followed enough of my posts here to know I own firearms, I enjoy shooting as a sport, and I'm not certainly not opposed to them in principle. But the gun nut culture as promoted by the NRA is simply pathological and unnacceptable. Those people are sick, and you cannot reason with them.
It's like the difference between Republican and Nazi. Or Obama and Communist. Yes, there IS a difference, and the people who can't see there is a difference ARE the problem.