Bookmark Bump and possible CWII ping.
The real civil division is the loss of the reasonable social consensus that once united America. Today values ,practices and expectations are so different between the two main groups in America that division is already defacto. Neither side shares values, likes or respects the other and each prefers as little social interaction as possible. They even prefer living in different areas. Real organized violence against each other? Doubtful. However unified action whether it involve domestic or foreign affairs will be very rare.