41% Increased Bugs With Copilot (youtube.com)
It is already very hard to hire someone who is going to improve a chip fab. And they might be 60 years old.
It might become very difficult to hire hard workers, and for low pay.
People are prepared for white collar jobs.
Cities are IQ shredders. They attract the IQs who don't have enough kids.
When you fully urbanize, you need an external source of population. Through history, this might have always been. Everyone moves to Toyko and Tokyo has a lower fertility rate. They aspire to go there and be a Tokyo-ite. Cities also spread diseases more quickly.