I mean the Nazis were white supremacists.
That's a modern misconception.
They certainly were racist, but they didn't think white people were superior. They had a bizarre racial ladder that didn't group people together by skin colour. For example;
"Aryans" (specifically northern Europeans — Germans, Scandinavians, etc.) were at the top of this racial ladder.
"Slavs" (Poles, Russians, Ukrainians, etc.) were considered Untermenschen ("subhumans") — fit for enslavement or extermination. Near the bottom with the Jews.
They didn't see all non-whites as subhumans. The Nazis sometimes described Indians, especially upper-caste Hindus, as distant Aryan relatives, racially "diluted" but culturally linked to the original race. They put these non-white Hindus above white Slavs in their racial ranking. They even had Indian troops fighting for them.
So yes, they were racist, but they were not white supremacist.
Actually, racism isn't a fundamental part of fascism anyway. The vanilla fascists in Italy thought the Nazi obsession with race to be very bizarre. (I'm not defending fascism here, I'm just trying to clear up historical misconceptions)