The military depends on a supply chain. A general strike will cripple it within weeks.
The US Army is very strong against other conventional armies, but has proven to be awful at unconventional warfare.
The greatest strength of the US Army is its arsenal of bombs and the powerful deterrent of the atom bomb. If the US army bombs US territory, then it is bombing itself. A general strike is unnecessary if the factory is gone. At that point the Civil War will become a war of attrition, and autonomous insurgent cells have an inherent advantage in those.
I expect at least a decent number of soldiers to mutiny or desert.
I hope we don’t have to find out.
Me neither. Too much fallout (potentially literal fallout) for the rest of us, plus inevitable piles of corpses in the former USA.