Well there's definitely a global reckoning happening, people are not having children in developed countries due to very serious social ills (every developed country except for Israel of course).
Social ills whose minds are pure machinery! Social ills whose blood is running money! Social ills whose fingers are ten armies!
Diminishing birth rates doesn’t actually correlate with what you call socials ills. The strongest correlation I’m aware of is with the education level. It’s a worldwide phenomenon, not something that only impacts developed countries