Birthrate used in a sentence

Birthrate in a sentence as a noun

Before it was overpopulation, now it is declining birthrate?

Nobody has solved the "problem" of a falling birthrate in a culture where there's easy access to birth control and general overall prosperity in an economic system where children are financial drains rather than financial assets, and they will continue to not solve it because it's not actually a problem?

And that's why there's no surer way to reduce the birthrate than to develop social insurance structures that are strong enough and equitable enough for people to feel that they don't need to have lots of children for one or two to survive, and that they won't be utterly dependent on those they do have for care in their dotage.