And the easy answer to the legal issues are fair use and licensing deals. The Carlin estate might not agree to such now, but it will almost certainly want to make money off of a dead property someday. And plenty of others will do the same, now and later. I didn’t say that there won’t be attempts to control this, but it will not be sacrosanct.
But that is all still missing the point of just how ubiquitous this will be. How many times on this very board have we posted some ChatGPT result like, “Write a David Allan Coe song about this story,” in just the last year? It won’t be long before you can turn that into a full-fledged simulated performance. Or, just as likely, a George Carlin routine about the COVID-31 pandemic performed by Beyonce in the Colosseum of Rome to their adoring fans Albert Einstein, Blackbeard, and Mickey Mouse with an after party rave DJed by Mozart. In Klingon. And people will make and share these creations regardless of the legalities and how much “true fans” kvetch. The same as they do memes today.
Yell at the clouds all you want, but it won’t stem this tide.