If this were the 19th century, Fox News' reigning talking head Tucker Carlson would be an old-school phrenologist. For those who don't keep track of racist pseudoscience or other tropes of social Darwinism, phrenology was the discipline of measuring the contour of human heads to predict mental capacity and predisposition toward criminality. It was used to establish the intellectual hierarchy of the races.
For its adherents, it was a metric that always confirmed the inferiority of Blacks and the superiority of whites based on bumps on the scalp. Who could argue with a rigorous scientific method?
Because Tucker Carlson is a phrenologist at heart, he still sees the world in terms of skull sizes, even though he knows he can't run his fingers across Black scalps with the same impunity white supremacists of earlier centuries took for granted.