They have been doing it since Guttenberg invented his press. Before that, government used the licensed pre-approved scripted theatrical performance to control public opinion; directing attention, shaping desires, supporting ruler's position, or occaisionally subverting it "for resons of state," and generally keeping NPCs between the dotted developmental lines.
Nation states who do not control the information domain can not last as nations. They are immediately subverted by a host of predators and parasites.
"Censorship" is not about stopping people from masturbating themselves to death, it has always been about power and protection of the sleeping population from deadly mind viruses which could otherwise be introduced by the adversary in books or movies. Such materials could and did drive whole cities and towns to madness and genocide. Government controlled information.
Here are a few thousand historical examples, in a book father's once gave their male offspring at puberty, Charles Mackay's "Extraordinary Popular Delusions and the Madness of crowds.
http://supernovae.in2p3.fr/~llg/Textes/Extraordinary-Popular-Delusions-Mackay.pdf
We are, most of us unable to to recognize the unseen forces at work producing our spontaneous intuitive decisions, and without we enter the world of the Spirt, we can't.
"We live in a material world" is cult propaganda, the lie direct; denying the source of all riches, the world of imagination, the place ideas come from, the domain of Spirit, available freely to all, the greatest power in the universe.
Other cult promoted temptations, drugs, sexual perversions and fake politics, moral and mental poisons, have greater appeal to a soul-damaged, harassed and incurious population; us.
Most of us have been exposed to MSM media mind poisoning from birth; we are educated in cult curriculum in our schools, learning so limited, thought habits conditioned we are reconciled to our slavery and can't imagine being "free."
If we don't like what's on HBO we have a 100,000 entertainment options. Cult controlled freedom means pepsi or coke, Tums or Rolaids, heroin or fentanyl.
The world of matter ends, the world of the Spirit continues.
https://templeos.org/