Civilians with guns took over Afghanistan and Iran, to name a few from recent history. Civilians with guns defeated Germans in Yugoslavia during WWII, not its army. Civilians with guns took over the US from the British army.
Civilians with guns in Afghanistan and Iran are hardly good advocates for similar scenarios playing out better in the US; it's quite likely you'd get a domestic version of Libya today, not any better an outcome.
Civilians with guns in the US must have outnumbered the BA, I'd imagine, but either way, I'm sure the BA was delighted to get away from a land where all sorts of snakes can kill you when only the adder, in extreme cases, can in the UK! Don't forget, from the British point of view, America was also used as a punishment, a distant place to where unfortunately unpopular people could be banished (didn't you read
Forever Amber as a child?). Maybe that's why the US and Australia seem to hold similar places within the British psyche...
And yes, civilians with guns, local knowledge and unlimited foreign supply of whatever it takes kicked the US out of Vietnam, too, and as with the Brits in America, I'm pretty sure those GIs were just as delighted to be the hell out of there.
Yugoslavia and northern Italy had partisans, as had France, but I think Germany had greater problems to think about closer to home than concentrate too much on those further away.
But anyway, it wasn't civilian guns took out Hitler, who took himself out; it was international armies who took out his war machine, and several different armies combined, along with one, terrible tactical mistake about Russia!
But the little elephant is this one: some armies that are defeated, such as in the case of the US in Vietnam, were not run by politicians without any sense of the value of human life, because had they been, the resulting bloodbath would have annihilated some entire countries, providing a pretty pointless victory. The tyrant of Alan's nightmares is hardly likely to share the same fatal weakness of a normal sense of the value of life, of anyone's life, other than his own. Those armed forces you already have, and that that said, probably elected tyrant would then control, would wipe out anything in their path. And remember, this would be no foreign expedition, this would all be played out on the homeland with no tv showing heroes coming home in body bags from fighting on some foreign land. The first thing you'd lose is an uncontrolled media. And you already know what media can do in America.
The even smaller, baby elephant could be seen in the case of the American Civil War. No foreign invaders there, were there? More like too many guns, period. On the other hand, I'm sure somebody could make an argument about it all being the fault of the black slaves.
Words, words, words. It all just rolls interminably round and round like some crazy rabbit stuffed with Duracells.
Rob