I suggest that you watch the documentary “Demographic Winter.” At the end of it, a professional demographer—who is a progressive, mind you—said that the only solution to the problem of declining birthrates was “patriarchy, properly understood.”
By the way, what you say isn’t entirely accurate. While Saudi Arabia has long been very wealthy, their birthrate is still quite high. This is because they have maintained patriarchy. (Of course, this doesn’t mean that I endorse their brand of patriarchy.)
Anyway, if you don’t see how feminism and the masculinization of females has twisted women, you don’t have your finger on the pulse of Western civilization.
By the way, a woman dressed in traditionally masculine garb (e.g., military or police uniform) is no different than a man dressed in drag. It’s just that people have been conditioned to accept it.
According to the CIA Factbook, Saudi Arabia’s birthrate is now 2.26 children per woman, which is just slightly growing.
This shows how rapidly their birthrate has plummeted since the data used in “Demographic Winter” (2008) (my guess around 2005), when they did have a very high birthrate. And this collapse is not just with them, but with most of the Arab nations.
It happened in Mexico about this fast as well. For years an exploding birthrate pushing people North, and a few years later almost stable (and just slightly higher than SA.)
I can well imagine that their government demographers about pooped themselves when these stats first came out.
In any event, I don’t think cultural forces can be blamed for something this dramatic.