It feels like there's an implicit "More Kids Good" tone that pervades this. What's the "right" value for TFR? Why does it have to be higher? Why is it bad that it is lower in some places? The ecosystem we exist in / that sustains us surely has a carrying capacity.
China will depopulate >50% by 2100 (conservatively) and we’re still worrying about mid 20th century concepts like carrying capacities as if we aren’t a highly advanced (and depopulating) tool making species entirely capable of creating ecosystems wholesale and affecting said capacities. https://en.wikipedia.org/wiki/Green_Revolution
We are literally unable to do that. The only thing we know how to do is burn more fossil fuels which has nothing to do with human effort.