The political mixture in Weimar Germany wasn’t that black and white - Communists vs Nazis. There were Communists divided into Stalin\USSR & Trotsky supporting factions, non-Marxist socialists, social democrat socialists, authoritarian conservatives and monarchists with some overlap between them. All fighting for political space & each other.
Many thanks, from those of us who DO know and understand these historical facts, for adding all of that. Perhaps others just might now have learned something...or not.