Fertility isn't dropping merely because women have "rights", but it's also because women are being forced into labor markets where they never would have needed to work before, women are being told, over and over again, how horrible it is to be mutually interdependent with a man, be married, or bear children or have families, and how much happier they'll be as successful, college-educated empowered go-getters.

It's both impractical and unpopular for women to raise children and stay at home while doing it. These are the rights they've won; foremost of them is the right for their bloodlines to die out within a few generations.