> And I’m really hacked off when that scolding comes from obliviously pretentious Older White Male Professors

Stopped reading here, because the piece is obviously racist.

If the author is trying to evoke a stereotype, say that explicitly. To say it this way, even if it's not meant, provides cover for actual racists (which are growing---see the "white privilege" movement).

"Racism" is properly defined as any view that implies that a person's ideas are determined by their race. See also Marxist class-ism, which is the same thing applied to economic class.

Rather, individuals are individuals, and they have free will. Nothing determines the content of a person's mind.