This isn't arbitrary. Egalitarianism and materialism are distinctly progressive philosophies. The Nazis explicitly eschewed traditionalism, spiritualism, and worshipped the volk, which is the communist worker with a darwinian spin, as part of their proto-managerialism.
Maybe, just maybe, the whole left/right thing doesn't make sense if you can just arbitrarily define a group as one or the other.
This isn't arbitrary. Egalitarianism and materialism are distinctly progressive philosophies. The Nazis explicitly eschewed traditionalism, spiritualism, and worshipped the volk, which is the communist worker with a darwinian spin, as part of their proto-managerialism.