I doubt the ratio is that extreme, but if the delta exists isn't the logical conclusion that a smaller subset of the men are having sex with a larger percentage of the women?
I thought this is pretty well documented on tinder at least that the top twenty percent or so of men are making out like bandits.
More like 20 guys will have sex with 80 of the women, 80 guys will compete for the 20 least desirable girls.
Maybe not that extreme but it's a super well documented phenomenon across evolutionary psych and studies of dating app stats.