[maxglute]

>In China's case

It's more likely PRC will have migrant labourers do low value work like Mexican fruit pickers. They're going to have ample high skill / tertiary workers for 50+ years, this baked into existing births... i.e. half the reason they have youth "unemployment" problem is they're generating so much tertiary talent vs opportunities, so there's no use for western based talent immigration to augment highend demographics.

The real shortfall is going to be low end blue collar - people willing to move dirt do shit jobs for peanuts, previously that's 100s of millions of undereducated who are aging out, so that leaves robots and south east asians and maybe africa because 1.4B PRC will require more remittance workers than poor asia can provide... unless they figure out automation. Even in west these cohorts are not immigration material, they're seasonal workers.