I think what the OP is trying to get at is that whites even practice white supremacy upon themselves. They do, but its about ethnicity among whites. Among them Nordic is at the top, Then Saxon, then Alpine, then Mediterranean. All ethnicities below the Nordic white in some fashion beseech the acknowledgement of the Nordics. This is why when we say that poor whites vote outside their interest, we're wrong. They vote inside their interest, General acceptance within their ethnic hierarchy.
Black people overall are the pin cushion for all of them. This is why its best that we learn to leave them alone, so that they'll eliminate themselves. Hopefully we'll get that someday.