how many of the english words are left? well, thousands, actually :)
I'm not a fan of AI writing because I don't understand why delegate your creativity, imaginanion, experience, thoughts, and personal insights to it. If you love words, and you love writing - do it. (I support your idea to add a disclosure for AI-written texts.)
As for your last point... Well, AI detectors often see my texts as AI-written though I wrote them myself. So, I'm that viction of being detected, as you say. How do I solve this problem? 1. Scan my texts via AI detectors before publishing. 2. Rewrite and improve the drafts. (It often appears that I overused some words or structured my text bad, so slight revising is usually enough for detectors to say "it's a human text!")
Cheers! :)