Even after the recent Hukou reforms, permanent residency for immigrants is nonexistant (less than 20k in the past 2 decades). It feels like such a huge own-goal in the current historical moment to miss out on attracting migrants, especially the now unemployed technical experts and scientists in deindustrializing nations. Have they perhaps been infuenced by the current wave of fascist hysteria in the G7? (By which I mean: the CPC proactively stopping such a movement from forming in China?) Are they high on their own supply about being a "civilizational state"? Are they scared? Are they CHUDS?
Edit:
It genuinely doesn't make economic sense at this point. For example, West Europe would honestly be a sterile crater at this point without immigrants from the past 20 years due to population decline.
The best reason I could come up with is that they fear backlash from the precariously employed youths and xenophobic elders.
Edit:
Historical inertia is probably a large factor here. It would be somewhat strange to switch from population control to population bolstering policies in under 2 decades.
Edit 2:
Vietnam is somewhat similar to China in governance, but is more leinient with immigration than even Europe.
I think you're making an error by projecting the imperialist's economic and political paradigm on a country that functions very differently
China actually welcomes foreign scientists, but workers laid off by the tech industry aren't scientists, they're engineers. Engineers may be high demand but they're also high supply in China so no need to import them
Secondly, China doesn't have a problem finding people to do difficult service, agriculture and industrial jobs because they never demonized those jobs like the west does and never promised their population that they deserve a cushy job just for being white (han in their case)
Finally China doesn't have systemic racial supremacy because they don't have colonies, they don't hate foreigners because of a need for capital to justify the shit it does. Every nation-state controls its borders, only colonialists made sneaky exceptions at some point to import labour from colonies and mistreat them at will