I find the following statement, from this very short 2005 piece in City Journal, a wonderful encapsulation of the stubborn manner in which politically correct ideas spread:
Why do I spend so much time arguing against such obvious rubbish, which should be both self-refuting and auto-satirizing the moment someone utters it? Why not just go and read a good book?The problem is that nonsense can and does go by default. It wins the argument by sheer persistence, by inexhaustible re-iteration, by staying at the meeting when everyone else has gone home, by monomania, by boring people into submission and indifference. And the reward of monomania? Power.