Can you give me a source regarding that claim? It is also okay if its in german. All I know is that the communist party which had ties to the soviets was the first party the U.S allowed, because it was Nazi free. A few years later the “Christian Democrats”, which were full of literal Nazis, made them illegal and continued the Nazi stuff without so much killing in Germany, they still funded the facists in Spain to continue murder people in the civil war the fascists began. People suspected to be Antifa couldn’t get jobs or had to go to prison in germany.
https://en.wikipedia.org/wiki/Antifa_(Germany)?wprov=sfla1
The section postwar commities.