I would infer it as the "peasants revolt" using farm instruments instead of purposely design weapons if war to defend you and yours, and to overthrow tyrants.

The same military that got run out of Afghanistan and Vietnam?

Sure, that might have been due to "public pressure" or "politics" but I think bombing Chicago or rolling tanks down the highway in Dallas will be pretty unpopular, politically.

Add to that the fact that there are a lot of very talented people who would suddenly have a very direct and morally unambiguous target. Did the FBI ever catch the dumb asshole who shot up the substation in NC a year or so back?

It wouldn't be a decisive win for either side. And who knows how many people in the military would defect, quit, or refuse to fight.

We really don't know what would happen in the scenario.

You're going to be hard pressed if you think most soldiers are going to be a-okay with dropping agent orange in their own hometown.