> But why would they? If they had to pay warehouse workers twice as much, what makes you think they wouldn't try to automate away even more jobs?

Good. We should automate away more jobs. More automation means people can work less hours, get more sleep, and pursue things that do not provide direct financial rewards but still enrich society. This is what we should be working towards.

The only problem with that is if the value of that automation only enriches a few people at the top. But that is not an inherent problem. The solution is simple: progressive income and wealth taxes. These can pay for universal basic income and other safety nets that provide for the people whose jobs have been replaced with automation.