[homogeneous]

> You are making the case that intraracial facial structures all resemble each other

No, my point is precisely the opposite. I'm making the case that facial structures are a crude approximation for genetic classification because it's not true that all "black" people have a dark skin complexion, not all "black" people have thick kinky hair, there is genetic diversity within the "black" community because the definition of "black" is fluid and based on an amalgamation of regional, political, cultural and apparent (as in apparent to the naked eye) genetic factors.