From: https://foreignpolicy.com/2009/10/20/the-return-of-patriarchy/

"The 17.4 percent of baby boomer women who had only one child account for a mere 7.8 percent of children born in the next generation. By contrast, nearly a quarter of the children of baby boomers descend from the mere 11 percent of baby boomer women who had four or more children. These circumstances are leading to the emergence of a new society whose members will disproportionately be descended from parents who rejected the social tendencies that once made childlessness and small families the norm. These values include an adherence to traditional, patriarchal religion, and a strong identification with one’s own folk or nation.

As has happened many times before in history, it is a transformation that occurs as secular and libertarian elements in society fail to reproduce, and as people adhering to more traditional, patriarchal values inherit society by default.

Consider the demographics of France, for example. Among French women born in the early 1960s, less than a third have three or more children. But this distinct minority of French women (most of them presumably practicing Catholics and Muslims) produced more than 50 percent of all children born to their generation, in large measure because so many of their contemporaries had one child or none at all.

Today, by contrast, childlessness is common, and even couples who have children typically have just one. Tomorrow’s children, therefore, unlike members of the postwar baby boom generation, will be for the most part descendants of a comparatively narrow and culturally conservative segment of society."