I'm curious (1) how much of these people's education or experience was subsidized by the American economy and (2) how common the same situation is in China (i.e. US expats training up in China and taking that expertise back to the US).
If (1) and (2) aren't aligned, it could be one of the factors contributing to the growing sense that we pour a bunch of money into higher-ed without seeing much return.
I don't mean this from a US nationalist or political perspective - I'm merely speculating on the economics. Are the incentives for coming to the country aligned for both the person and the country? Many companies will pay for employees to go to grad-school but demand repayment if the employee isn't still with the company N years later. Would such a system for college/work visas make any sense to help keep talent?
Like, even if a daycare worker finds it easier to get a job with a college degree, are we better off as a society if more daycare workers have college degrees? I think not.
I'd bet having a college degree is much more than a tie-breaker in most cases - it shows a level of work, discipline, and probable intelligence that is genuinely an advantage for most jobs.
(This is problematic because it also shows a huge set of advantages that the degree-holder has had. If somebody has enough advantages to have a degree and is applying for a daycare position, it might mean something is very wrong for this person and maybe it should tip the tie-breaker situation the other way!)