Lookup US obscenity law and case history. Child pornography is an easy example, 80 years ago it was any pornography, or even obscene literature, joyces Ulysses was once banned.
On general speech has only gotten freer, to think we now are at the precipe and speech won't be even freer is naive, provincial, and arrogant.
Interacial kissing was once provocative, sodomy illegal as recently as 2003, and now depictions of transexuals is edgy.
That anyone thinks its okay to limit speech, the midwife of thought -- its a debate going back to the State sanctioned murder of Socrates for 'corrupting the youth', 'making the weaker argument the stronger', and 'profaning the gods' -- its sad hilarious but those we are educated know such views are on the wrong side of history even if good people like Socrates are murdered along the way.
Let's see if I even share my speech here, I'm regularly shadow banned for no reason.