Earlier quoted context omitted.
Robots aren't capable of doing everything people can do yet, but as they become more capable, what and how are displaced unskilled workers supposed to do if they can't get any job at all? Starve to death under a bridge? Not everyone can handle social or intellectual labor. I think this is why UBI is essential: prevent riots and meet people's basic needs so they're not pennyless and sleeping rough.
Your statement "not everyone can handle social or intellectual labor" is a larger sociological problem. If we insist that the only people allowed to participate in the labor market are college educated white guys, maybe; I don't see that statusquo continuing. The hoops some members of this forum will jump through to convince themselves that building CRUD apps is some zenith of intellectual might just continues to ast…
Presuming we want people to have good lives who aren’t able or inclined to do jobs requiring much higher intellectual demands than janitorial ones (and I certainly do want us to presume that!), we need to figure out how to in the short term allow people doing those jobs to have good lives and in the long term allow them to have good lives while robots do those jobs.
Perhaps I’m misunderstanding your comment.