There are very few things that are worse
Than asking someone to make up a verse
When there's no pay involved,
But the problem is solved -
Please say "thank you" and try not to curse.
I don't think it's quite so simple as "cause some people are racist." Yes, we learn about the Tudors, etc., but in countries which are or were, to a large degree, peopled by predominantly white people, it is natural that the history would concern those events which affected those countries...