It's not “developed countries have reduced population growth”.
It's: ALL countries have reduced population growth in recent decades compared to their historical baselines. Including in "non-developed" countries, like in Africa.
Many (most) countries have also dropped to sub fertility rates or close above.
On top of cultural and other reasons, there are also objective fertility issues with sperm counts and others emerging (likely due to modern food, climate crisis, microplastics, or some such).
Combine that with looming issues emerging from population shrinkrage causing economic decline, pension collapse and things like that, and then add environmental issues and resource wars into the mix.
It's no consolation if some pockets of humanity here and there carry on the torch, if humanity shrinks down to irrelevance.
It's: ALL countries have reduced population growth in recent decades compared to their historical baselines. Including in "non-developed" countries, like in Africa.
Many (most) countries have also dropped to sub fertility rates or close above.
On top of cultural and other reasons, there are also objective fertility issues with sperm counts and others emerging (likely due to modern food, climate crisis, microplastics, or some such).
Combine that with looming issues emerging from population shrinkrage causing economic decline, pension collapse and things like that, and then add environmental issues and resource wars into the mix.
It's no consolation if some pockets of humanity here and there carry on the torch, if humanity shrinks down to irrelevance.