Globalization isn't the primary problem, I think. Though, that does obviously increase the probability of hypergamy being acted upon, due to the additional pool of available men. The main problem is cultural forces that, in turn, help influence and shape the laws. Ideology influences legislation. The best example of this in recent times is the women's liberation movement. The cultural landscape rapidly changed and the pendulum wildly swung in the other direction. Laws were enacted that changed the social and economic landscape to a degree nobody could have anticipated.
We're seeing the same thing creeping its way into other parts of the world, like South Korea (feminism has a strong foothold there, like it does in North America). In KSA the new king, who is very liberal, changed the laws to allow female drivers and have males and females intermix in public spaces.