Earlier quoted context omitted.
...it does? This level of automation is recent, and industrialization is the blink of an eye in human history. If we're talking shorter scale, people have traditionally hand-waived it with 'Oh, these jobs will go away, but they'll be replaced with other, higher-skilled jobs!'. That's an economist's idealism and doesn't fit reality.
CGP Grey has an older video now about what happened to horses over time. For a while every economic advance seemed to mean more and better jobs for horses. But then the automobile comes along and there's no more need for horses and we can see what happens to an animal that has no economic reason to exist. We still have a much smaller number of horses for the few economically viable roles a horse can fill and as toys…
Yes, but those were horses. Now substitute the word 'human'.