It is all due to outsourcing. AI/H1B isn't taking that much job. Unless government put penalties on outsourcing market isn't going to improve.
The peope will wealth are doing well, the rest of the market is not.
There are only so many apps and goods that can be made for rich people/small subset of consumers.
I bet you will find that people working on investment ideas and finance tools which focus on wealth accumulation will be hiring.
The h1b people spend (most) of their salary in the USA and pay US income taxes. Whereas overseas labor spend their salary over seas and pay no US taxes.
When is YC going to add "This account is based in..." like X has?