AI will make things cheaper and more abundant - at the cost of a few people not enjoying their jobs. So what.
You could've made the same argument at any time in history because all technologies do the same thing. Things will go on, mastery will remain.
Investors I know are investing on the prediction that people will be less able to participate in the profitable parts of the economy in the future, and most transactions will be between businesses.
We're building a future for humanity where people are both unhappier and poorer.