I doubt there will be a civil war in the USA. One side has guns and thinks shooting people is fun; the other side waves placards and tears its own side to shreds over tiny deviations in Political Correctness. So we're actually looking at a Rwanda-style slaughter where one side kills and the other side is killed. To have a civil war, you need at least two sides ready and eager to fight. The USA has only one side that qualifies.