While individual couples may want fulfillment by having children I’m not convinced that a nation needs a constantly expanding population for the current residents to live full rich imaginative lives.
that’s fine to have that opinion but perhaps it is a nonsequiter. I am just stating that we have a choice as a nation - pump out babies or have open borders. I see absolutely no way around that choice. Discussions about how fulfilling people’s lives are in different scenarios, although important, does not seem to be important to this topic.