Mark Steyn on diversity

He writes, in a Corner post that must be read in its entirety:

"Diversity" is not a virtue; it's morally neutral: A group of five white upper-middle-class liberal NPR-listening women is non-diverse; a group of four white upper-middle-class liberal NPR-listening women plus Sudan's leading clitorectomy practitioner is more diverse but not necessarily the better for it. For thirty years we have watched as politically correct fatuities swallowed the entire educational system, while we deluded ourselves that it was just a phase, something kids had to put up with as the price for getting a better job a couple years down the road. The idea that two generations could be soaked in this corrosive bilge and it would have no broader impact was always absurd. When the chief of staff of the United States Army has got the disease, you're in big (and probably terminal) trouble.