Immigration also requires someone having children, just in a different country. And the birth rate is already declining across the world [1]. So it is still kin

Immigration also requires someone having children, just in a different country. And the birth rate is already declining across the world [1]. So it is still kind of selfish, at a country level, to not have kids of your own but let the other countries go through the trouble of having and raising kids only to lure them once they are ready to contribute to the society. [1] https://data.worldbank.org/indicator/SP.DYN.TFRT.IN https://data.worldbank.org/indicator/SP.DYN.TFRT.IN