Obviously, there is nothing that makes a black person not count as black.
Clarence Thomas is a disgrace to every black person who fought and died in the civil rights movement. His history on the supreme court is travesty for the rights of the individual man against corporate power.
The point is that Ben Carson is one person of color in a Whites-Only House. We could talk about stupid the guy is. How he recently said in his confirmation hearing: "It will not be my intention to do anything that will benefit any American." We could talk about his apparent belief that the pyramids of Egypt were used to store grain. But we won't.