Why do you think that denying consanguinity with a brilliant Negro in any way diminishes the words of the brilliant Negro? Do I detect an implication of Negro inferiority in your words?
The question is, what makes his race relevant? Why did Charlite include his picture in her post? Why are we even talking about this? Because Sowell's picture stimulated Old Professor to reference his race instead of his remarks.
I'm not a Negro but, if I were, I wouldn't capitalize the word. Why do you?