> make a mess of the economy
You're not taking something into account. The economy is becoming stronger, more productive, and more efficient because of this. The brain drain from all other fields to the few highest-paying ones is decreasing.
> The people replaced by AI don’t have a similar path.
They have a better path: get a real job that will bring real benefit to society. Stop being parasites and start doing productive work. Yes, goods and services don't fall from the sky, and to create them, you have to get your hands dirty.
> to create them, you have to get your hands dirty.
But we're talking about a world where they're building robots to do this kind of work. When AI takes over the white collar office jobs, and robotic automation takes the manual "creating" labor, what'll be left for humans to do?
When you fire massive amounts of educated works to replace them with AI you make a mess of the economy and all those workers are in a worse situation.
Farming got more productive and farmers became factory workers, and then factory workers became office workers.
The people replaced by AI don’t have a similar path.