People seem to assume that the Baby Boom was going to continue in perpetuity. No. Nothing does. It was abnormal, hence the title of the event and generation. Populations waver. There's the Boom, the Bust, and the Echo. Happens all over in nature.

What we have here are developed nations that are not interested in their populations reproducing. The tax burden in this country is a crime, and the cost of raising a family is huge. The gov't keeps wanting to bring in more and more immigrants because it's better for their bottom line, compared to women returning to a more traditional role. There is nothing, NOTHING wrong with a woman being a mother. It's worked well for our species since we became a thing. But women who are being mothers aren't submitting weekly payroll taxes.

The shift from one-parent working families to two-parent working families happened very recently, and it was economically-driven.