If they gave a fuck about the birthrate, they'd focus on how men typically don't agree to it until quite late, and find ways to fix the issues they have with parenting.
If they gave a fuck about the birthrate we'd have affordable or free childcare.
If they gave a fuck about the birthrate, everybody would have good natal care (including Black and Blak and other first nations women).
If they gave a fuck about the birthrate, we'd have menopause prediction.