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-class families. The leftists themselves feel that these groups are inferior. They would never admit it 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 as capable as men. 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.
They hate America, they hate Western civilization, they hate white males, they hate rationality. The reasons that leftists give for hating the West, etc. Thus it is clear that these faults are not the leftist's real motive for hating America and the West. He hates America and the West because they are strong and successful. He wants society to solve everyone's needs for them, take care of them.