>because in all of this change we can’t be bothered to imagine a world where people have money without jobs?

We can imagine it all we want, and a free pony too. What we'll get is most of humanity not needed, and living in the edges of society, plus some 10-20 percent still "useful".

>The best bull case for us reaching luxury gay space communism is that people not working and having near infinite capital to buy whatever they want to enjoy is the only way the billionaires get to see their pot growing forever.

Billionaires are about power. The money was just a means for that, if they can get it in another way, they will use that. People "not working and having near infinite capital to buy whatever they want to enjoy" is the last thing they'll want.