That doesn't seem plausible. How can the "top 10%" of men be having sex with anywhere near the " top 90% of women"? That'd be a
lot of sex for those men. And wouldn't they be kept busy enough by the top 20%-40% of women?
I do suspect that social media is a huge part of it. With such a focus on superficial attractiveness. And the potential for mobbing. There was lots more slack, back in the day.