You know, pretty much all of that website seems to be written by one guy. So I looked up some of his other work.
the myth that women primarily work for reasons other than economics or family needs distorts reality https://medium.com/@daviddemos/women-under-siege-quick-notes-on-the-rights-assault-on-women-s-work-choices-and-family-formation-c3b27c6266e6
It's hard to draw conclusions. Who knows. But what I will say is that this guy clearly spends a lot of time thinking about how certain women can be coaxed into having more babies.
Women in Europe, North America, and some countries in Asia.
Tea towels for everything (drying dishes, drying hands, moving hot things), washed frequently.