Those rulers you're talking about are darker-skinned, so maybe what you mean is the lighter-skinned have higher status. "Usurpers" may convey the wrong impression too.
Anyway, this is something that happens in Mexico too. Darker-skinned politicians generally take wives from the lighter-skinned social elites.
FWIW: Butterfield probably would have started out in segregated schools and went on to a historically Black college in the area, so if he didn't want to move, he'd most likely be considered Black by his neighbors.
You try to alter what I wrote in order to refute. That’s what Democrats do as a matter of course. It is akin to the Straw Man ploy.