[DoughnutHole]

Plenty of content derives its value from perceived authenticity.

Content that is made by humans that is fictitious/constructed is perceived differently from content that is considered "real" - tweets from an American pretending to be in Ukraine would be perceived differently from tweets from someone actually in the warzone. A novel written by someone reflecting such an experience can also affect how we relate to it.

There will certainly be some content where people won't care if it's AI generated or not (certain kinds of fiction, technical writing (provided the reliability issues are resolved), etc) - but a lot of content (fictional and non-fictional) derives it's value from reflecting in some way things that actually happened to actual people. Of course AI could still very much play a part in putting that content to paper, so to speak.