On the 2nd Amendment thing, I understand your viewpoint as a tactical matter. But I am wondering if it really is hopeless if we as a free people and armed populace find ourselves facing a tyrannical government taken over by anti-liberty socialist-communist types. Remember Red Dawn? Those kids started with simple firearms and built up their armaments by capturing better weapons. I am thinking some kind of similar tactics might be an option. Take to the hills and harass the enemy into submission. The Afghans did it against the Soviets, the VC and NVA against us, to an extent, a decade earlier.
Note that I do not desire nor do I advocate a re-run of Concord, because we'd get slaughtered in a set-piece, head-to-head match against modern forces (as the Iraqi Army found out). Guerilla tactics would likely be the only viable option, and small arms might be useful there, especially in difficult terrain.
Yeah, well then join the 'circle' of which Dan speaks because he'll send you down the river with the next candidate that is 90% except for abortion.