This article is about global birth rates falling, which is true. But your comment is about conditions specific to the US. Yet birth rates are falling in countries which don't have the warped incentives you point out in the states, and where having children is supported (see Europe, much of Asia, etc.). So although you accurately point out that there are downsides, if not disincentives, to having kids in the US, that cannot be the driving cause of falling birth rates in the rest of the world. And therefore there's no indication of any kind of "top-down" force there either.
I politely disagree, the childcare support and social services you have in Europe are not an incentive in anyway, for the large majority of countries here, they are a mitigation at best.
The majority of young europeans in fertile age, continue to struggle with housing costs (high rents high down payments) and salaries not in line with COL until far too late in their careers, if not indefinitely. Those two are the major drivers for 'post-poning' having children in IMHO.
"Europe" is a big and diverse place. But it's my fault for generalizing. Let me rather mention the Scandinavian countries, for example, where support is pretty ample. Certainly, having kids is still expensive and time consuming, but that's how it's been since the beginning of time. The difference is, now people can afford not to have them.
As for the rest of Europe, sure, housing is expensive and all that, but people have more discretionary income now than ever, after housing and daily necessities (at least as far as I can recall from economics classes). But I do think young people's expectations have shifted as well, which makes it feel like we've got less headroom for a bunch of kids. And we certainly don't have the safe, well-paying jobs our boomer parents often lucked into.
Here's a top down global conspiracy theory: micro plastics carried by the air and water are ingested and cause hormone disruption leading to less sex and therefore less children.
