Take any econ 101 course, and you'll realize that this isn't a factor in the capitalist system. Capitalism is simply concerned with maximizing profit, and in this case, returning shareholder value. It's just simply not in the purview of the system to think about what happens when you completely get rid of your labor force.

Envisioned another way, the future of labor might look the way it did for laborers over 100 years ago, before major industries unionized; making 'Amazon-bucks' that can only be redeemed at the 'Amazon company store'.

No wages -> Nobody buys stuff and services -> Companies are going bankrupt -> No taxable income from consumers nor companies -> States are going bankrupt.

You can either go through UBI and pretend that capitalism is still a thing, or just nationalize everything and go with communism.

Henry Ford understood this problem with his Model T and realized that if he wants to sell it, he also needs to pay workers to be able to afford it.