Earlier quoted context omitted.
Gregory Clark's work on tracking English class mobility in the 1700s-1900 (The Son Also Rises & A Farewell to Alms) indicates that this isn't the first time this has happened (ie, the obsolescence of a large portion of the labor force), and that it's possible to manage the transition with a fairly minimal amount of law enforcement resources.
This time it's different. Our most valuable asset as workers is our minds, if AI can make inroads into white-collar work as well as blue-collar and pink-collar work, what will be left for humans to do? We're not just talking about low-skilled workers losing their jobs, we're also looking at previously safe jobs like doctors, lawyers, accountants, etc... due to be facing very strong competition from the growth of AI (…
The historical solution (eg in the context of manorialism) was that if you couldn't afford to have a family, you didn't (and if you did, the kid got shunted into a monastery or the equivalent and was prevented from reproducing), so the "surplus" peasant population effectively shrank, and the English lower classes ended up being the descendants of downwardly-mobile gentry, who mostly found employment in different sectors.
That solution breaks down in the context of modern welfare systems.