Hitler himself made use of the growing Black population to further demonize the Jews. In his autobiographical manifesto,
Mein Kampf,
Hitler wrote:
“Jews were responsible for bringing Negroes into the Rhineland, with the ultimate idea of b*stardizing the white race which they hate and thus lowering its cultural and political level so that the Jew might dominate.”
Clearly, anti-semitism was the top form of hate espoused by the Nazi ideology, but their disgust for African-Germans was still significant. Nazis saw Black Germans as inferior people, along with the Slavs and the Romani.
Heinrich Himmler, a man largely responsible for designing the Holocaust, instructed a census of all Black people residing in Germany in 1942. This might have indicated they were next in line for mass extermination if Germany had not been defeated in 1945.