We already have a world where most of the people cannot afford the goods and services that represent most of the world's economic output. A subsistence farmer in the global south is already shut out from most of the global economy. This will simply be an extension of that. The end result of the dreams of AI bros is Earth turning into Solaria.

The top 10% of the US is already responsible for the majority of the US's consumer spending. The consumer spending of the bottom 50% represents a small fraction of overall consumer spending. This will simply continue to get worse until the economy is 99% just rich people who own hoards of robots trading goods and services with other rich people that own hoards of robots. The rest of the population will just be dead or be kept alive and placid through a meager feed of bread and circuses.

The wealthy already view everyone else as robots, tools for them to exploit. They'll just replace metaphorical robots with literal robots.