Answer this question for me: When it does not take but a small percentage of a given population, to provide for the needs of the entire population, what do you do with the surplus? And the people that are not employed therein, how do they relate to those that are? There are only so many widgets you can have, and at some point, the mechanism breaks down. The jobs, if any, that are left, cannot or will not be done by the surplus population available. So, you import additional population for those jobs? How do you deport the original population to make room for the new ?
When the value of a human being, based on what they can produce, is less than the cost of maintaining that person, what do you do? Especially when you insist on continuing to produce people, and trying to drive the value of their production down even further ? Nothing grows forever, not even cancers or bacteria. At some point entropy demands that an equilibrium be reached in order for the system to continue to exist.
With equipment you can shut it down and store it, put it in mothballs, with materials you can re- smelt them, create new materials, different alloys, form new products, etc. You cannot just do that with people, or any biological unit for that matter. People will take one example of success and then extrapolate that "anyone can do this", but that is crap.
When water temperatures increase, and oxygen levels drop, carp will thrive- but the trout will die. If the market for beef changes, decisions on production changes will take at a minimum of 3 1/2 years to implement. Rabbits- about 4 -5 months. Money may be "fungible" but people are not. Not only that, they continue to deteriorate at a linear rate no matter what else happens. Unlike machines and livestock, they are not going to just sit around and wait while you make up your mind what to do. They may remain docile for longer than one might imagine, but at some point they are going to be motivated to move.
If you remember "Animal Farm", the end result was NOT good, but the farmer never made it until the end of the book.