> Al and Tipper Gore were roundly mocked for the record rating system they championed.
Which has a direct mirror in the mocking of Republicans who are currently trying to ban books and ideas (CRT) they don't like. A lot of your idea rests on the concept of "culturally influential people" pushing these actions. Again, I don't see the evidence of that, seems like a boogeyman.
> R rated movies were far more successful at the box office, with lots of questionable content by today’s standards.
Odd to compare 90s box office to today's box office given the impacts of COVID and streaming. We didn't have Amazon Prime, Netflix, Hulu, Paramount, HBO Max, Disney Plus, and more. You would need to add all the R-rated movies from those platforms to make a comparison. Either way, 4 of the 5 highest grossing R-rated movies (inflation adjusted) came out after 2000 [1].
> Today, the academic and cultural power brokers are the biggest champions of shutting down “objectionable” speech.
We definitely hear more complaining about it, today. I haven't seen evidence that it actually occurs more frequently. If anything, I see the opposite influence in the race to ban scary books and transgender people. Those ideas aren't coming from "cultural" leaders or "academics".
That said, it is far easier to be gay or transgendered today than the 90s. We also just had a President who described people as ‘fat pigs,’ ‘dogs,’ ‘slobs,’ and ‘disgusting animals.’ He also 'told a contestant on Celebrity Apprentice it would be a pretty picture to see her on her knees …” [2] I don't think that would have been a good electoral strategy in the 90s, probably would have gotten him "cancelled."
[1] https://www.the-numbers.com/market/mpaa-rating/R-(US)
[2] https://www.theguardian.com/us-news/2016/nov/30/political-co...