Well, it looks like I can join your club: a few days ago I received my first-ever forum ban. It was only for 24 hours so I don't think that anyone noticed, but I figured I had to share my new criminal credibility with someone
That aside (and not related to the above), I'll be massively cutting back on my forum activity again, but this time probably for the long-term. You have my email address if you need to reach me! I hope all is going well for you.
In my true opinion, it's not worth the fight (offline, that is - online verbal scuffles are fine and fun). If they feel so strongly about their guns, let them keep them. As long as they don't go off the deep end and try to subjugate the rest of society to their whims by force, it's fine. Sure, we'll have to put up with more armed criminals, and we'll have to tolerate the occasional blow-up when a person loses it and goes on a killing spree... I don't mean to downplay those events or how tragic they are, but they're not so prominent that guns are an absolutely critical issue.
I know, right? You'd think such people could only exist in fiction. Well thanks a lot, reality, you're stranger than fiction sometimes.
Personally, I feel that if they want their guns so much, they're free to have them; the sooner they qualify themselves for a mass Darwin Award, the better. I can only think that way because I'm ultimately quite removed from the situation though; in your case, your position is a bit more perilous.
In hindsight I had some fun but it was a waste of time, and something that removed some of my faith in humanity's reasoning abilities. To be fair, I'm sure they felt the same way about me. A rather pathetic situation all-around.