That's not possible from a statistical standpoint unless men account for 80% of the total human population. And we know for a fact that it's a lot closer to 50-50. By extension, it means that if most men do not have a partner, then most women do not either.
it's explained in the article; when there's an age gap it tends to be older man, younger woman rather than the reverse, and there are more out gay/bi women now who are dating each other. and not mentioned but likely a factor: guys with multiple girlfriends.
Among 15 and 20 year olds, the most skewed results (India and China) are 106 to 100, a difference of 6%. Rest of the world is pretty close to 50-50 [1].
