We agree, though. Capitalism is really, really good at growth and really, really bad at steady-state. We've never really come up with a good alternative for steady-state. I think Marx got the diagnosis right and the treatment wrong, which seems like a pretty modest hypothesis given the relative difficulty of the two. Regardless, we had better figure this out or things will get messy. Very messy.
TBH I have higher hopes for a couple more industrial revolutions to push the meltdown out beyond my lifetime. Bio and space, maybe? :/
That seems unlikely. Political and economic leadership throughout the "White West" has been subsidizing and expanding the non-productive underclass for decades.
They definitely weren't a major manufacturing economy in the 18th century.
Basic fact: for thousands of years, the big problem was making (or growing, catching, or mining) enough stuff. In the 20th century, that problem started to be solved. By the second half of the 20th century, the leading industrial nations had it solved. Then Asia caught up - Japan, Taiwan, S. Korea, and finally China. China was the big one, being a huge country. Suddenly there was overcapacity in almost everything.
Now, as I write occasionally, it just doesn't take that many people to make all the stuff. It's now possible to have a successful economy with a huge non-productive underclass. Economics and politics haven't caught up with this yet.