I think it comes from a misreading of Marx because Marx considers value coming from Labor which is purely zero sum.
In my bubble within friends and family, practically everyone uses AI and has fun using it and gets value out of it.
My non-tech friends use AI to make funny meme images that they send around on group chats, but would they pay for those? I doubt it.
I can't think of anything in my personal life that I would pay for an AI to do. Businesses, sure... as long as they are getting real value.
Don't you think it's a bit overconfident to dismiss Marx just on such a simplistic interpretation (as he had simply failed to consider that economic activity can be non-zero-sum?)