Nazis were Germans, not Americans. Confederates were Americans. Despite being an abomination in the eyes of many Christians, slavery was written into both the Bible and the Constitution.
I do not support racism, slavery or any other group that divides Americans into anything less than an American citizen with equal Constitutional rights. OTOH, I also do not support an authoritarian government using Federal troops to invade another state. If you do, then you should be supporting Trump's invasion of Portland. It's no different than what Lincoln did.
I support States Rights with a smaller Federal government.