Earlier quoted context omitted.
It's actually probably easier since the government would be asking its own people to kill its own people. If the local government were in broadly thought to be tyrannical, a guerilla civil war would have a high chance of success. Ask Cuba.
It's impossible to say with certainty which way it will go. There's factors pushing in both directions. You're right there will be some defection from the military to any US insurgent side but there's also a lot of space to draw divisions in the US and given enough people you can assign soldiers to fight places they're not particularly aligned to support. My biggest point is that all the often cited success stories o…
Do you think the guns in civilian ownership are to be used for foreign wars? They are exactly for homeland invasion.
And who will back the US with arms? In the examples you gave it’s a richer country, or multiple, helping a poorer country. Who’s going to help the richest country in its death throes? What will be the benefit for all that aid should that nation fall? It’s better to pre-stage the weapons as that also serves to deter those that think the US is inadequately armed.
When presented with historical events supporting these claims your response is “cannot say with certainty”…
The interesting and terrifying part is, if I were China or Russia, I would be online trying to convince the US to disarm itself too.