I feel “on the air” is a bit misleading and antiquated, and I think that’s quite relevant, because you seem to be using “the air” as some barometer of social acceptance.
Even the “cool” elderly people I know stopped listening to the radio and broadcast TV years ago. Nowadays, everything is Podcasts, Netflix, Hulu, Spotify, YouTube, TikTok, etc. and none of them censor “fuck”. Our culture is generally becoming a lot more open and accepting when it comes to the use of words like “fuck” and “shit”, however words like “cunt” are still fairly taboo.
From my perspective, broadcast TV and radio are simply a measure of how many Americans are hanging onto an antiquated culture, and I’m sure there’s significant overlap between “people who listen to broadcast” and “people who still find ‘fuck’ offensive”, and it’s likely no longer just a function of age.
Thanks for sharing the Lenny Bruce but, I had no idea that inspired Carlin!