What a STUPID argument! Was that the hill worth dying for?
I think the professor is too emotionally invested in her “I am not a racist” bona fides. In any case, academic arguments like this one need to stay in the classroom and off of social media.
Professor isn’t a racist, she’s just never wrong. A student had the audacity to question her and the professor became unhinged. Colleges are often little ivy covered North Koreas and professors are the infallible dear leaders.
No one, but no one, may ever accuse a professor of being wrong.