Nazi Germany was toppled by literal communists

This is leaving out so much that it’s not really the truth.

and there were very successful resistance and partisan movements throughout the regime

This only happened in the occupied countries and it is debatable how much of a threat these movements really were. While they contributed, they were not what won the war in the end and most likely would’ve been squashed like all the other local uprisings before. Had Germany put all the focus inside their own borders and had the US and USSR not gotten involved, they never would’ve stopped. Which is precisely the situation in the US right now. There will not be any external factors to bring the military down. It will be like Russia or North Korea if you allow this to continue. There is no real resistance in countries like this, everyone falls in line eventually.

You’re totally right that it’s harder and that we need to organize now, and that’s what I’m trying to encourage people to do

Good, so start with the next best thing, voting for a Democrat who at least respects the constitution. Anything else is unrealistic at this point. You have to make a first step into the right direction before you can even think about realizing your final goals. Real change takes many, you can never just jump to the end of the line.