To me a defining characteristic of 1930s Nazism was a perceived mortal struggle against Communists that excused or justified egregiously unethical and immoral means.
In the modern U.S. that has some similarity to the highly polarized debate the last decade along party lines.
This however? It's mortal political enemies coming together to elbow-bump over ... pork-barrel end-of-term politics. That, from a realist perspective, is America. It's not great, but it's not 1930s Nazism either.