I have been to a lot of gun shows in my day and for all I know, what you wrote might be the modern legal argument or whatever as far as libs on the joke of our SCOTUS; but I can personally vouch for the absolutely confirmed existence of insane "SHALL NOT BE INFRINGED" gun libertarians, sov cits, white supremacy, tree of liberty watered with the blood of the patriot, cult compound guys since at least the 70s, and undoubtedly before that, and I've seen the typewritten manifestos to prove it.
If anything the 2A guys are WAY more moderate than they used to be. The old guard of rednecks before my time all had a bunch of basically illegal shit that was grandfathered into being quasi legal, not because it was a good idea, but because the ATF didn't feel like losing all their field agents.
Could not disagree more with what you said. Reagan doing a heel turn on his nut job electorate and dramatically restricting gun rights as governor because of the black panthers is def peak radicalized shit for libertarians working their way into a more coherent political systems theory, though.
Having the #1 high school for opiate overdoses in the nation would somewhat argue against the structural integrity of your hypothesis.
Also reducing public safety down to reported murder rates is some really airtight logic