Err -- did you look at your graph? Your first link shows that 2017 was the first year that more women were educated then men....and your second link is from 2015, before the flip.
Of course I looked at the graph. Even though women earned more degrees than men in 2017, for nearly the entire history of the country, men earned substantially more college degrees than women. Thus, men currently hold significantly more than half of the college degrees right now. We're talking about prevalence, not incidence.
You are correct, but current college graduates (so 56% of them women) are in the "dating pool" much more so than the 60-year olds (where a higher percentage of men are educated, but not much dating going on).