They buried the lede here. > Sexual activity was largely unchanged among unmarried women, along with no notable decline among gay men, researchers reported. Basically sex is following the pattern of wealth. Men as a group aren't having less sex, instead there's a winner take all effect where a small number of men are having a lot of sex with a lot of women while a large number of men are having little to no sex. It'l…
I don't think this entire discussion belongs on this site.