BUT
The biggest thing they overlook is that unless EVERYBODY in the world cuts back on population growth.... An individual country doing so will only be freeing up land and resources for someone else’s progeny that currently live elsewhere BUT that WILL eventually move to where there is plentiful room and resources.
And I personally have no intention of using toilets that dont flush properly, shower heads that just drip, reusable grocery backs packed with deadly bacteria, and digging through my own garbage to sort it, so that some 3rd world parasites spawn will still have space and resources when they illegally invade my country sometime in the future.