It makes perfect sense thanks.
As AffIt put it, it's about punching down. You can't punch down to a wealthy, white leader of a country whose only potential lifetime discrimination has been based on not being wealthy enough or owning a fucking comb
Also...
So, in much of sub- Saharan Africa, rich black men are the problem- is it racist to point that out?
Actually, again the problem historically is the white rich men behind what's happened on the African continent. What's happening there today is the result of colonialism inflicted by...rich white men.
You're either spectacularly naive to the reality of what racism looks like or purposefully obtuse to the meaning of white privilege.