I'm of two minds on this. Yeah sure showing people fucking is no problem. But I am also annoyed that in 90s movies always had to be a romantic subplot tacked on. Tombstone would be a perfect movie if it weren't for the tacked on romantic subplot. Story about revenge, and dudes putting their lives in danger to help a friend, all great stuff. But pause that for 10 minutes so we can put in some romance bullshit because it's a 90s movie. It's also the biggest historical inaccuracy of the movie as strange as that sounds.

it’s very similar to the perspective of prurient Baby Boomers in the 1990s or 00s who wanted every movie that showed a penis to be rated NC-17

Well the sensible approach would simply be to make NC-17 more mainstream. In fact that's why they changed it from being called X-rated to NC-17. They tried putting out a popular NC-17 movie, but this is how we got the movie Showgirls and they stopped trying to do that. That's just typical Hollywood bullshit where they have a good idea and fail at the execution and then abandon the good idea.

I don't see a problem with having nudity being given an NC-17, it's just more information. It's just that NC-17 is considered a death sentence for a movie's popularity because of its association with Showgirls. Which is just weird.

I wonder if the Zoomers won’t wind up having a lot more in common with their Baby Boomer grandparents than they realize.

I think it's just that there are always going to be prudish people. Just in the past the prudes gravitated towards religious groups. But since religion has gotten so mixed up with some detestable politics, the prudes have to find some other groups to push their "ewww boobies, that's not right!" feelings onto. Ideology isn't really all that different from religion when you think about it, so that's where the prudes go now.