I already linked you Wikipedia, but I guess that's controlled by the Kremlin. How about the Holocaust Encyclopedia, is that controlled by the Kremlin too?

As soon as the Nazis rose to power, they began targeting communists, both inside and outside Germany. In 1933, the first concentration camp opened at Dachau to hold political prisoners. The first prisoners were all communists.

You are objectively wrong about this and if you ask literally any historian, regardless of their political views, they will tell you so. I can hunt down more sources for you if you like, but I have a feeling you've dug in your heels enough that it literally doesn't matter who or what I cite.