Yeah, that's true. Most of Africa is inhabited by Blacks. I know North Africa is not Black. The Bushman of Africa are actually not Black, but Capoids. Ethiopians may look Black, but they are mostly a Semitic people.
That is true of the Amhara and the Oromos in Ethiopia who have comprised the ruling class for many centuries.Among the rest of the population southerners are black and Northerners shade into berber North Africans.