You realize Africans like Europeans and Native Americans until recently wouldn't view themselves as "Africans" or people of etc continent. That's viewing the world through a 19-20th century lens that no one would have held. These are modern identities not the ones Moors would have held.But why they didnt civilized their own Africa
Muslims were pan racial just like Christians. The Moors weren't all black but they were more black than say Egypt(which had about a USA like percentage of black people).