That sounds the ultimate form of globalization, manufacture children where it's cheaper and import the adults

Most couples eventually want to have a children, they just don't feel they can because the increasing cost of living and lack of support and preparedness from most developed societies, since more people move nowadays they lack family support which would make it easier

If population is reducing is because governments don't mind it and doesn't think they should incentivize it like other things

Birthing a and raising a person is not cheap or easy, but treating it the same as commodities seems wrong

And what is the problem with population shrinking? Some countrifies would well benefit from less population. Everyone complains about stained health services, lack of housing, climate activists "the world has too much population"... Is it just a economic problem that everything has to grow for ever? Change the economic model to allow for natural population oscillations