Why does the author claim it is a "repulsive idea" that Blacks are biologically different than Whites?

That's not merely an idea, it's a fact. If there aren't any biological differences between them, why do we have words for them? If they're exactly the same, why are we even having this conversation? What utter rubbish.

Makes a person want to smack those hipster glasses right off her beige face. Is that racist?

Her fascist liberal hellhole degree-mill college education is showing.