I agree with you....there is a limit to decent people’s patience. When that breaks it does not make them “extremists”....it makes them fed the F*** up. There is a very big difference as well as in keeping with our framers intent. That is not extremism......that is patriotism.
You might find the book UNINTENDED CONSEQUENCES worth reading. I'm a bit reluctant to recommend it because of all the kinky sex in it, but I think it does describe how this is likely to play out. It won't be a repeat of 1860. It'll be more like Baghdad in 2006.
Borrow a copy if you can. It's out of print, and the prices on Amazon are absurd.