We are so far from the four-feet-of-space-per-person hypothetical you are discussing here that it’s…
Totally unbrindled population growth would eventually become untenable of course, especially from an ecological level — but where we are at…
We are so far from the four-feet-of-space-per-person hypothetical you are discussing here that it’s kind of a misrepresentation of our disagreement. Population density varies wildly throughout the world, but there is enough free, unoccupied space in the United States alone to handle the vast majority of people that exist in the world today.
Totally unbrindled population growth would eventually become untenable of course, especially from an ecological level — but where we are at today, the main problem is corporations abusing and wasting resources and space and degrading the environment, not individual people with kids. To focus on curbing reproduction when the problem is primarily corporate waste would be a major misallocation of time and resources.
I support making birth control and other reproductive resources more widely available, especially in parts of the world where people often lack those choices. That would decrease the birth rate in some places, which is totally fine and good. Same thing with increasing education globally — that tends to drop the birth rate a bit. When it’s consensual and a personal choice that’s rad. I only want people who want kids to have them. But for those that want to have them, I see no issue.