Honestly, a lot of the scripts in recent media has been absolute drivel anyway... Certainly the basic Netflix and marvel rubbish could be generated and tweaked quite easily

Yes, I think people are naive about how much humans base their creative work of things they have read/experienced when saying generative AI just copies what came before it. So is almost everything humans create.

A lot of entertainment is very derivative. Honestly, I wonder what kind of stuff will start happening in creative circles when generative AI content becomes ubiquitous.

Look at photography and how it affected the art world (arguably). Once perfectly reproducing images became possible art started exploring so much more than the technical aspect of how things looked. Impressionism, cubism, modernism, post modernism.

Being able to make a picture look like the subject lost almost all value, and art moved onto more abstract endeavours.

What will happen to writing when a "normal" book can be written in a day? What will happen to music when a celebrity singer can just be put into any song with the click of a button?

I, for one, welcome our SkyNet overlords

Maybe for some things. But there still is, and always will be, something to be said for experiencing live music. Concerts where real people are playing and making music live, is very different than sitting at home and listening to it on your speakers.

AI can make conglomerations of anything and everything. But, I can't go see AI play a guitar, bass, drums, violin, cello, etc live. That will always require people. Hence the 'live' part.