My two cents, worth what you paid for them... Hyperbolic terms like "treason" and "at war" only serve to obfuscate a deeper understanding of our opponents' motivations and way of thinking, and make it harder to persuade.
The NRA can make progress, or at least achieve stalemates (which are arguably wins), at the federal level by mobilizing supporters and recruiting from a large pool of pre-existing sympathizers. Here, we have to persuade, and we can't do that if we're ascribing oversimplified evil intentions to people.
I'd describe many anti politicians and their most rabid supporters as callous but well-intentioned fools who don't have any interest in or understanding of guns. And much of the public as uneducated sheep.
Might sound like a stupid distinction, but fools can be educated and sheep can be herded back in the right direction, while enemies in war are irredeemable.