What have other people heard of the experience of half black children who have tried to be raised as Yeshivish?
There was a child in a similar situation – but not half black, he was black – who applied to a Chareidi school in London. The school accepted him immediately. When a parent of another child in the school complained that he didn’t want this child in the school, the school threatened to kick out their child, not the black kid.
To the best of my knowledge, he is very happy in the school.