America is making its own open (and closed, Mexican border) concentration camps, just like China with the Uigar Muslims, Israel with the Palestinians, Nepal Burma with Rohingyans, Modi with disowned, etc. Obviously they get worse press, rightfully so, but we should not be blind to where things are headed. A camp does not have to be physical, it can be mental and conceptual too.
No amount of prominent black Americans can change that. Not even a token ex-president.
Edit: just saw Rado's post above.