I don't see that happening. I mean, if it hasn't happened by now...when would it? Most conservatives are just too nice and law-abiding to do anything.
I recall from my studies of the Revolutionary War that there were times when leaders really thought they were fighting a lost cause. But they pulled it off and I am confident that we will do so again. I’m not sure how we will do it, but we’re Americans, all “impossible” means to us is “hasn’t been done yet”, and we’re not outnumbered quite yet ;)