Many point it's from the professional/managerial/bureaucratic class, which never was into free speech to begin with. Take pg's mention of the Soviet Union. That's actually a country where that class overthrew the capitalists to become the ruling class. (They were called "The New Class" there. In countries like the US, they're above workers but subordinate to capitalists.)
And all this is a useful distraction: criticizing wokies distracts from the structure of power that leads to homelessness and working your one (1) life away under some boss. Which is ridiculous in the 21st century.