" The world pullulates with profoundly unrespectable people, views and actions, at all levels and in all neighbourhoods, and PC's reflex tendency to attack most of those who attack many of them makes matters worse. True discrimination - careful and fair-minded separation of worth from dross - is bundled by PC with all discrimination, and banned; hence the trouble.
What began as a movement to rectify relationships has become a minefield of suspicion and anxiety. Much of the anger that has made it so is understandable; none of the humourlessness and puritanism that keeps it so is acceptable. It is particularly a pity that its excesses have stained left-liberal thinking, of which it is a strand; but not, thankfully, the whole. "

― A.C. Grayling , Thinking of Answers: Questions in the Philosophy of Everyday Life