Because much like the ethno-nats at large (and the Nazi types specifically), they know that if they were serious about their beliefs, the average normie would balk at it. But while the pinkos are better at lying about their intentions, sometimes they seethe so hard that they let slip that they are as evil as they think you are.

Also, I agree with your larger post in this thread as the most likely outcome of this. I just find it extremely funny/ironic that even while they are actively oppressing their chosen enemies, their enemies still find a way to outperform the commies by merely existing. Unironically, Communism is the very definition of failure.