

Ignoring the odd idea that this hypothetical person is somehow completely unemployable regardless of industry or upskilling, why do you assume that that immediately makes them a negative to society? Is a person’s entire value predicated on their ability to earn money?
Why do they need to work, though? If AI can replace so many people that there aren’t jobs for them all, wouldn’t that also mean AI is producing enough to sustain those people, jobs or not? At that point, why must society continue to expect everyone to support themselves if society’s developments as a whole make that unnecessary?
OP’s question seemingly indicated that they felt someone who couldn’t earn money was immediately a net negative to society. I don’t believe that’s true now (stay at home parents are a good, but far from only, example), and I can’t see me believing it’s any more true in a future where AI can replace large segments of the workforce.