Political correctness has its stronghold among university professors, who have secure employment with comfortable salaries, and the majority of whom are heterosexual white males from middle to upper middle-class families. The leftists themselves feel that these groups are inferior. They would never admit to themselves that they have such feelings, but it is precisely because they do see these groups as inferior that they identify with their problems. Feminists are desperately anxious to prove that women are as strong and as capable as a man. Clearly they are nagged by a fear that women may NOT be as strong and as capable as men.
Leftists tend to hate anything that has an image of being strong, good and successful.
The moral code of our society is so demanding that no one can think, feel and act in a completely moral way. For example, we are not supposed to hate anyone, yet almost everyone hates somebody at some time or other, whether he admits it to himself or not. Some people are so highly socialized that the attempt to think, feel and act morally imposes a severe burden on them. In order to avoid feelings of guilt, they continually have to deceive themselves about their own motives and find moral explanations for feelings and actions that in reality have a nonmoral origin. Thus the oversocialized person is kept on a psychological leash and spends his life running on rails that society has laid down for him.