The only reason Hitler and the Nazis were anti anything was to seize power.
I’ve read a lot about this subject and I disagree with you.
They really were fanatically anti-Communist, it was genuine, I mean the Marxists were in actual control of parts of Germany....Berlin wasn’t called Red Berlin for nothing.
At one point in the 1920s the Marxists seized control of huge portions of Bavaria and declared Bavaria a Soviet Republic.
The German people at that time, going into the 1930s were facing a rapidly stark choice, support National Socialism or Communism.
The hatred of Communists therefore was real and continued to be real throughout the period.