1. Consumption is endless. The more we can consume, the more we will. That's why automation hasn't led to more free time. We spend the money on better things and more things

2. Businesses operate in an (imperfect) zero-sum game, which means if they can all use AI, there's no advantage they have. If having human resources means one business has a slight advantage over another, they will have human resources

Consumption leads to more spending, businesses must stay competitive so they hire humans, and paying humans leads to more consumption.

I don't think it's likely we will see the end of employment, just disruption to the type of work humans do