Yes, I share the same concern as seattlecyclone. I anticipate will be plenty of jobs for robotic engineers, and AI experts, and also for gifted singers and artists and things like that for many years to come.
But it is not necessary for robots/automation to replace every conceivable job which could be performed by a human in order for them to replace all the jobs* some people can perform.
Here's one scenario I see playing out: Basically, traditionally automation frees up mindless work, which allows people to move onto higher value work, using their minds. But as Seattlecyclone reminds us, someone (I think it might have been you) pointed out there is a upper bound. Being a truck driver or Amazon FC worker requires uniquely human skills. But many of those people don't have the ability or skill to become AI engineers or patent attorneys.
The scary part, as I see it, is the bots are now coming for knowledge jobs. I mentioned above that bots now write sports stories and election results. That means we need fewer writers. And yes, that leaves people more time to write better stories, but there are fewer entry level reporter jobs as well. We have Robo-advisors, which I think are kind of a bust, but they are better than a lot of real financial advisers and people who use Robo-advisors aren't using humans (or not as much anyway). Reading electrocardiograms used to be something of an artform that required a skilled, experienced cardiologist to interpret, but now most are analyzed by computers. IBM's Watson was designed as a medical assistant. Plug in the symptoms and it spits out the most like diagnosis and a course of treatment, and it is always on top of the current literature. That means doctors can treat more patients, which means fewer doctors will be needed. And shoot, maybe soon you can start plunging in your own information at home, which also means fewer doctors are needed.
After bots get done eliminating driving and warehouse jobs, bots are coming after knowledge jobs. Actually, they are not even waiting, they are coming right now. The former drivers and warehouse workers won't be able to become doctors or sports writers because those jobs are going away too.
And yes, the bot owners will need luxury mansions and staff. But Jeff Bezos makes 10,000 times more (completely made up number) than the FC worker. But he doesn't buy 10,000 times more houses, cars, or shoes, or eat 10,000 times as many meals.
"Aha" you say "these people can also become artists and musicians. How many Picassos and Beethovens were trapped in the FC until they were able to find their calling?" They answer is very close to zero. You can't make a living as an artist unless you are popular, so by definition there is a very limited number of artists who can make a living being an artist.
Maybe this all turns out okay. It looks grim from here.