“rights to effective individual defense” isn't going to cut it against a government armed with nuclear weapons, tanks, and what not. The notion that a few guns will protect you against government overreach is outdated by at least a hundred years.
2. You assume the whole military would be unified in drone striking their fellow countrymen. I wager a large chunk, likely more than half, would splinter.
3. There's not much point in nuking the place you wish to rule. There won't be much left to rule.