Here is another perspective:

> In every technology wave so far, we've disrupted many existing jobs. However we've also opened up new kinds of jobs

That may well be why these technologies were ultimately successful. Think of millions and millions being cast out.

They won't just go away. And they will probably not go down without a fight. "Don't buy AI-made, brother!", "Burn those effing machines!" It's far from unheard of in history.

Also: who will buy if no one has money anymore? What will the state do, when thus tax income goes down, while social welfare and policing costs go up?

There are other scenarios, too: everybody gets most stuff for free, because machines and AI's do most of the work. Working communism for the lower classes, while the super rich stay super rich (like in real existing socialism). I don't think it is a good scenario either. In the long run it will make humanity lazy and dumb.

In any case I think what might happen is not easy to guess, so many variables and nth-order effects. When large systems must seek a new equilibrium all bets are usually off.