Looking at this article, it seems obvious to me that Hitler probably loathed American racial mixing and would have gleefully tried to conquer us if he had managed to consolidate his position enough.
I have to crossreference 2 other books, The Strange History of Jim Crow
about how America invented segregation circa 1890 and The Last Jews in Berlin
The author of TSHoJC quoted a report by a South African reported visiting the US who wrote, "You control your blacks better than we do" and he used the words "final solution". In the early 1900s South Africa introduced apartheid. The author did not draw the conclusion but it appears to me that apartheid was copied from segregation.
Unfortunately we have been a world model for racism. No back to the main subject.
In TLJiB there was a SS investigator interviewing a married couple who had a cousin and his wife living with them after their home had been bombed out in another city along with their identity papers. That was the story the 4 were sticking to. Actually they were a Catholic couple and the other couple were Jews. The investigator gave an attitude of "I'm not buying this" but closed up the briefcase and left. The woman said goodbye which is aufwiedersehen = until-again-to-see = "See you later." "You better hope not," said the investigator.
Outside of the Final Solution there was a complex of laws. Jews were forbidden any good jobs and were doing scut work like digging ditches and collecting garbage. It appears to me that to a great number of midlevel Nazis a final solution was to reduce Jews to shoe shine boys and have an occasional lynching to terrify them.
Martin Gardner gave an odd incident from Naziism. Of course all party members had to have a genealogy check going back to 1750. For one newspaper propagandist they didn't have to go that far. His mother was American. She was half Dakota. But he was well liked and valuable. So after conferring about it the Dakota tribe was declared Auslandeutsch -- foreign Germans. There was no further ruling on other Indians. A lot of Germans have always admired the American Indians. When a German tries to reconstruct what German barbarism would have been like around 200 BC or so they are stuck. We don't know much about the customs. The Germans figure that they lived about like American Indians.
So drifting into scifi concepts I imagine an American SS in the Nazi occupation that had American Indians in the black uniforms.
Similar to this do you remember the movie Predator
? Do you remember the American Indian commando with the Bowie knife? That was Sonny Landham from Georgia, a real American Indian. Well, he joined the Council of Conservative Citizens
, a white racist group. He once ran for office in Kentucky, calling for a genocidal war against the Arabs.