Technically, he's correct, except his extent is far, far too narrow. Correct me if I'm wrong, but the concept of "race" simply doesn't exist in a biological sense. There's people whose skin happens to be darker than some, or whose eyes look a little different, but they're not different on any truly meaningful level, just slightly different (if I remember the term correctly) morphology.
Put another way, its like saying a Russian blue cat is fundamentally different from a calico. In any measurable, meaningful sense, they're the same thing. They're both cats, one's coat is just different from the other.
