There always has been and always will be censorship.
Is this true: "Fear is the root of all censorship."
“Us” and “Them” is often the universal language of censorship.
Who has the right to determine when “a line has been crossed”?
When “we” decide that “they” are promoting “hate,” who decides the definition of “hate”? One culture’s “hate” is another culture’s “norm.”
Is there such a thing as too much “political correctness”?
Censoring censorship can be a form of censorship. EXAMPLES: “We” don’t like “them” censoring books, so “we” will prevent “them” from doing so because “they” are [fill in blank] and “we” are [fill in blank]. “They” use speech (art, music, etc.) that promotes [fill in some form of "crime"]; we must prevent that.
One major event of censorship in ancient China was The Burning of Books and Burial of Scholars in 221 CE. It was an act Emperor Shi Huangdi ordered. His reasoning was to restrict intellectuals from questioning the power of the dynasty.
Emperor Shi Huangdi
The Burning of Books and Burial of Scholars in 221 CE
Gary Whitta has worked in Hollywood for 15 years, and if the experience has taught him anything, it’s that screenwriters don’t have much control over the final product. “Oftentimes when you work on a movie, it gets all bent and pushed and pulled out of shape by the various people on the film who are more powerful than you,” Whitta says . . . . “Because everyone on a film is more powerful than the writer.” Fresh ideas face an uphill battle in Hollywood. At first Warner Bros. was enamored with the edginess of Whitta’s script for The Book of Eli, a post-apocalyptic thriller with religious overtones. But when push came to shove, the studio balked. https://www.wired.com/2015/08/geeks-guide-gary-whitta/