I strongly agree, and that is a material component of this story: global depopulation is underway. Why? Because women can affirm their reproductive decisions now. We've built entire systems upon historical fertility assumptions, assumptions that did not assume women having agency at scale would lead to a rapid decline in fertility rates. Those systems are now in objective peril. Does the will exist to pay the "horrifically high" costs you mention? Based on all available evidence, that does not appear to be the case. There is enough will to loudly complain, but nothing can be done about it, nor would the costs ever be accepted as necessary by anyone with the power to accept said costs and institute said costly policy.

That's the story, in my humble opinion. Not that depopulation is underway, but that nothing can be done about it, and any policy put forth to try to do something about it would be so expensive as to be deemed impossible.