What they want is tyranny:
I don’t care how noble a side sounds, how profoundly urgent its benevolent message, if they say “this you cannot think. This you cannot read. This you cannot even consider” they are a tyranny in the making. If they get power over you and yours soon you’ll find that it’s “This air you cannot breathe.”
They are also unsure of their logical appeal and their ability to withstand the market place of ideas. Otherwise, why ban certain thoughts and ideas and points of view?
This is why “political correctness” is a bad thing, because it takes away your tools to think of things properly. If you can’t even express that men and women might be different, you surely can’t think about it.
It is also why progressivism with its ever growing list of “forbidden terms and words” because of racist sexist and imperialist bad thought (brown bag, really?) is a tyranny in the making.