I'm by no means stating that our current right to keep weapons is useless or that a guerrilla campaign against some hypothetical future tyrannical power would be impossible. I'm just saying that the 2nd Amendment has proven not to be insurmountable at all and that when people could have revolted or whatever to keep it allowing everything, they didn't.This "America vs the Army" is a false dichotomy when trying to argue about what an average citizen can and cannot own under the 2A.
The Army IS American, there will be refusals to use that overwhelming force against citizenry. Plus, there will be thefts, raids and outright defections that means within ten minutes of any hot Civil War breaking out, both sides are going to have equipment parity in short order, and the standing uniformed Army is going to have a LOT of trouble leveraging theirs as the VC showed that guerrilla tactics can win the day against a superior foe as long as they have the will to keep taking casualties.
So no, the 2A is not useless because the Average Joe can't own a TOW missile. He doesn't NEED one to effectively resist a tank whose crew defected, whose ammunition stockpiles were stolen and whose fuel supplies were sabotaged.