I'm sure the retort of the AI optimist will be that AI will make the things that person buys cheaper, and there may be truth to that when it comes to things that people buy with disposable income...
But how likely is AI to make actual essentials like housing and food cheaper?
IE. If a top tier dev make $1m today, they'll make $5m in the future. If the average makes $100k today, they'll maybe make $60k.
AI likely enables the best of the best to be much more productive while your average dev will see more productivity but less overall.