I don't see a problem with people immigrating, working, and retiring here.
If the people who come from here cant make enough babies then this is a good and natural to see immigration.
Exactly, the question is: Do they make enough babies here? If they do not, then the problem is just extended. Can a liberated and industrial nation sustain a high birthrate? ->
-> or is there something about the social and cultural norms that makes industrialized / market economy nations in our current economic system non-compatible with high birth rates ->
-> that may actually be the case, and if so it means that it is not a stable solution long term, that wealth/productivity/work culture at some point becomes a detriment for a nation.
The lower birth rate is due to low infant mortality. As it is governments incentivise birth. I know my government is paying us for our children.
Lower infant mortality alone does not explain the discrepancy of the birthrate, and if economic incentives for having babies work then it is an alternative to replacement immigration.
