I’ve issued this challenge here on FR for years.....never any takers.
Show me one nation ruled by blacks that is well-run and prosperous. Just......one. I won’t even go into the violence aspect.
Botswana is the only nation in Sub-Saharan Africa that I can think of that isn't a complete basket case. It's the exception that proves the rule though - unlike Zimbabwe or South Africa, the black government didn't make it a matter of policy to replace competent white technocrats with incompetent tribal cronies.