He knows. But when everything else is white, it is telling. Plus, it "just happens" that the only matriarchy is evil./roll eyes.

By the way, initially elves were described blonde and very, very white. Later it evolved to white with different hair colours. But still white. You only need to look at Larry Elmore drawings. Everyone was white. And that was the official art.

And then you have Chult, not much better.

Let's face it, Forgotten realms is mostly a white setting. And so, we have people questioning the validity of a black barbarian. Not cool.