The wiki said it is Literary Inquisition
It refers to official persecution of intellectuals for their writings in China ... the rulers deliberately extracted words or phrases from intellectual's writings and arbitrarily accused him in order to persecute him.
It happened throughout China's long history in every dynasty. "Literary inquisition" or "speech crime" does not feel right.
For someone who knows little about this part of history, I will explain to them that it is like the Thoughtcrime in 1984 and it is not anti-intellectual per ser but to intimidate any free-thinking. But censorship doesn't convey the meaning of Literary Inquisition because its purpose is to put the author of that written work in jail to frighten him and any newcomers.
I also asked ChatGPT and it said you may try "witch hunt against written works" or just "witch hunt of words".
But I was hoping to see a better term.