What do you mean "become?"
They've always been what they hate. It's just now coming out plainly for all to see. Honestly, statements like this professor's are exactly the same that empower dictatorial regimes. That was Hitler's solution; shoot (kill) everyone with whom he disagreed or didn't like.
On one hand it's scary how these people are getting realizing that if they ever gained enough critical mass we'd have a social terror on our hands.