The problem I described is multi-faceted, and I might not have made a good job at it, or some people might not have understood me (judging from the knee-jerk downvotes).

One issue is societal wealth. As a society, everybody can be "rich" in the sense you describe, but I already addressed that in the part where I write about the "Star Trek/socialism scheme, where social wealth is shared". I am fine with that kind of a society. I just don't see that this is what we are currently approaching with automation, etc, but rather huge poor masses and an middle class in decline.

So, my other argument was about what is actually happening, i.e. the continuation of the current model + automation. And what I said, is that if you believe --as many do--, that corporations, enterpreneurs, buying and selling stuff, in essence a market economy is crucial, then you need poorer people with jobs, ie. you need consumers. You cannot have a market economy AND everyone being rich in the "I have more than you" sense, and you cannot have a market economy AND the great masses out of work due to automation.

So, my argument is, automation is ultimately non compatible with a market economy. You get either sharing for everybody (i.e no market economy), or a collapse in buying power / sales (i.e a poor market economy).

(A final point, re everyone being rich in the "I have enough" sense: beyond the basics, "needs" are themselves a social construct. To a caveman, or a 17th century peasant, a man working at McDonalds with a house, tv, food, internet, bathroom, modern medicine, etc, seems as "more that he will ever need". To his contemporaries, not so much).