Joe, you clearly need another trip to cave country, especially up to Marianna area..... Over 80% of the people I meet are into one or usually more of the following
Scuba
Skydiving
Engineering
Planes
Shooting
Doesn't mean they're aggressive people, but most of them are alpha males and we tend to be pretty similar, many of which have military backgrounds, you obviously included. People who think guns aren't peaceful have clearly never sat in the beauty of nature while hunting.... Frankly hunting is much better for all involved than buying meat from the grocery store anyway, or shooting a fish out of the ocean instead of farming, so I'd chalk that comment up to an ignorant fool and move on :-D
That said, depending on what they watch, there is a huge difference in people that are preppers and go a little overboard imho, and those that peacefully enjoy shooting sports, hunting, etc. I.e. watch the Prepper shows on whatever channel they're on, and if that's all you've seen, I can see how people would think that gun owners are aggressive nutjobs. On the other side, you can watch something like Duck Dynasty, where everyone while a little weird, are all very peaceful and enjoy nature etc. etc. Completely different points of view on the matter, unfortunately people get their perspectives skewed from the minority of wackjobs in this country and the rest of us that peacefully enjoy making things explode or eating tasty critters as they were meant to taste like get lumped into that.
Regarding the AR's, they clearly don't realize that they are big boy tinker toys, and similar to scuba, especially technical, half the fun of them is playing with them and tweaking things to get them just how you want them because off-the-shelf is never good enough :-D