And that taboo is probably rooted in evolutionary psychology, people have a genetically driven tendency to criticize those who advocate having less children? So could there be an instinctual drive behind it?
https://www.flashpack.com/solo/relationships/dont-want-kids-...
Treat it as a software optimisation problem - should you go after a large number of very minro problems, or take an axe to the single large problem that dominates your metrics?
https://www.theguardian.com/environment/2023/nov/20/richest-...
This is congruent with removing women's bodily autonomy, banning abortion and banning or restricting birth control of all types.