Have to love the thought police right?
As Tina Turner said, what's love got to do with it?♫☺♪♫.
Earlier in the 20th century, the early years when movies were new and then mid-century when they were more established - there were all kinds of censorship codes. Good, solid moral middle America couldn't believe what was out there. Filth, they would say, trash. Happened with TV, with rock music explicit lyrics, video games with violent content, etc. Often the objections were from religious conservatives, who objected to whatever it was that challenged what they thought was right. But they would not be the only ones wanting to restrict things. Left leaning feminism often becomes political bedfellows with religious conservatives not wanting pornographic material around whatsoever. There's always something people object to, either for moral reasons, or sometimes, as with scientific topics just not wanting false information to be presented as if it were the equal of true information.
You could always try to convince people to just accept the alternative, promotion of all kinds of ideas that are blatantly wrong or incorrect, or unproven, or immoral, or violent, or hate filled, or or or or with no policies around it whatsoever, and just let everyone sort it out for themselves.
Or suggest some kind of middle ground -- whatever that would look like.
The philosophical reasoning as to what the restrictions are becomes legal reasoning, as at least in the US is under the body of First Amendment law.
https://www.thegreatcourses.com/courses/the-first-amendment-and-you-what-everyone-should-know This course is AWESOME and explains A LOT of the thinking behind these ideas.
I hope it's okay to put this link in here -- it's to a commercial site but not anything owned by me. It's a lecture course produced by Great Courses.
But anything OTHER than having no policies at all limiting anything, and letting absolutely everything go no holds barred:
ANY alternative means limiting SOMETHING for SOME REASON AND:
It would still result in someone mumbling about how THEIR stuff got suppressed and being suspicious as to WHY?