I dunno how to tell you this, guy, but some four or five thousand years of human civilization were accomplished without #genAI before AI existed. That's kind of where AI came from. You're asking rhetorically, which came first the chicken or the primordial soup, and you believe it's the chicken.
I would ask this #genAI proponent what he did five years ago to accomplish whatever he now claims AI can't be accomplished without. Then maybe, why he believes no one now can be doing it that way. And/or why he believes no one could go back to that way. Sounds like he's saying AI wipes your memory