lots of child care support in Nordic countries and still low birthrates.
If women have a choice i.e they can self support (work) if needs be and not be gas lit, they'll mostly choose 0,1 or 2. That's not enough to grow a population. That and contraception that separates sex from birth.
Look to Hungary, no incone taxes and all sorts of benefits and still a low birthrate. I can see them changing the law to punish women (financially) who don't but they're in the EU so they can say fuck u and move :)
I'm a guy but it makes sense to me, why would a woman do years of study want to be mostly birthing kids every other year for a decade or more ? career, travel, saving and investing etc are much harder if you have a quiver full, let alone the impact on your body, so we're back to 0, 1 or 2 and a declining demographic.
For every woman who decides on 0, you need another woman to decide to have 5 to basically stand still in terms of demographics, and the only ones doing that are religious nutters.