In modern life, we can prevent CW2 by pushing Sanctuaries for conservative values. Liberals already set the precedent with cities and states where cops were punished for cooperating with border patrol. Create Sanctuaries for freedom of speech or more Second Amendment sanctuaries, and arrest liberal fascists who attempt to violate our rights.
If the radical left and deep state are running wild, that would happen. The pace may be slow or fast, but it is heading in that direction.