The only way an insurrection would happen is if quite a few respected leaders call for one. Otherwise see my tagline.
Yes I agree it is unlikely. I think the fall of the United States will come from the Barbarians at the Gates (the gates as been trampled into the sand), as opposed to internal revolt. There will be small scale insurrections in localities as conditions deteriorate, but nothing capable of taking out the totalitarian government we will (may) have in less than a month.