Comment by kklimonda

Immigrants are indeed more willing to do the jobs that domestic workers are no longer interested in doing, but their effect on wages is minimal, mostly affecting lower class, mostly other immigrants. It's unclear if there is anything that can be done to incentivise people to have more children, to the extent that it makes a difference on the macro level. And this is kind of moot point anyway, most western countries that deal with lack of labor force don't have time to wait for children, if their citizens want to keep their level of support.