What do the Soviet union, Nazi Germany, The islamic state and medieval christianity have in common? censorship. In all totalitarian systems opposing the main idiology is not allowed. Anything that is published that goes against this system is vaporized. Thinking differently is not allowed. This seems to be the case with political correctness. Anything that is published on social midea that goes against PC culture is deleted and the person is shadow banned. People who speak otherwise in LGBT or antifa rallies are yelled to so that they might not be heard.