Exactly. Why do you read it, wasting your time?
Our humble human intelligence can always outsmart the cleverest AI. But we need to have some.
Your postulate about banning AI writers reminded me two songs about fools by Bulat Okudzhava.
In the first one (text is here, and author sings here) he suggests that to avoid fools, we should label all smart people. In your version, it would label the text “Not written by AI.”
In the second song, Okudzava (text is here, and author sings here) reminds us that Chekhov noted that wise people like to learn and fools like to teach. A propos what I learned from you.