The sexual revolution, universally assumed to be a boon for randy men, has turned out to be in at least one respect much more conducive to satisfying women’s preferences than men’s. Men may have started it, or at least egged it on, hoping that with the old restraints gone, they would be free to indulge. But they forgot or never understood a fundamental law of nature: throughout the animal kingdom—up to and including Homo sapiens—males merely display; females choose. When a woman’s choice is completely free of all social, legal, familial, and religious boundaries, she prefers to hold out for “the best.” Hence a constrained-supply problem arises.
Four years ago, a University of North Carolina co-ed lamented to the New York Times that the sex imbalance on college campuses (nationally, 43% male, 57% female as of fall 2014) is even worse for girls than it looks. “Out of that 40 percent, there are maybe 20 percent that we would consider, and out of those 20, 10 have girlfriends, so all the girls are fighting over that other 10 percent.”