Apparently the Simpsons is getting rid of the voice actor for the black doctor character because he is white,
I don't know the whole story, but I saw a video clip recently, I think it was Joe Rogan? This actor was recruited to do loads of characters Voices. Then they added this black character. He's the only one doing "voices" so it fell to him to do it. It's not as if someone has deliberately chosen a white person to pretend to be a black person. It's the same old story, "they" are distorting the facts to suit their ideology.