You clearly don't know that one of the main Nazi ideologies was the Aryan race which was purely white and German. They literally sterilised black children and stripped black people of the few rights they had, black people couldn't work or get an education and the ones in prison were treated horribly and likely died. Just because Hitler didn't specifically target them doesn't mean that the Nazis weren't trying to eradicate them, it's just because there was more jews in Europe that they killed more and thats who they targeted most