Someone should ask him to explain "liberal arts" and what it means for it to have become "illiberal"

People are allowed to disagree with conservatives. See also "cancel culture."

They really should.

It means they don't say conservative things

Precisely

he's gonna say that thing they're suddenly all saying about how they have become infected by "oppressor-oppressed" thinking

"Liberal," in the old sense of an education suited to freemen with leisure from property ownership. "Illiberal," OTOH, means the servile classes presuming to think critically about issues like power and privilege, which are beyond their station in life.

I'm a world where the US still had functioning mainstream journalism, someone would have by now.