Judging by how you feel it necessary to even ask such a ridiculous question, I strongly doubt you would accept any answer but that which supports your anachronistic views.
A man goes to the office every working day. He works long hours as he is trying to prove himself and really grow his career. Even after work, he's more likely to just quietly hit the gym or read in the evenings.
He's obviously hurt his chances at marriage. He's not investing in any women. He's not socializing or dating, he's not learning to be a good partner.
Now go back and pretend I said "woman" instead of "man".
I'm totally open to being wrong. But take the girls' college thing for instance. Many, many people I know met their spouses through college. There simply aren't as many chances to socialize and meet people after you graduate. I think it stands to reason that if you are a straight woman, you are less likely to find a spouse if you go to a college with only women.
women's colleges routinely mixed socially, had dances etc. with men's colleges. To the point that alot of girls went to college to meet eligible men of upper echelons.
I don't think GP's point was that women's colleges have mixers
Data about marriage among people who choose various lifepaths is not a viewpoint.
There is an increasingly prevalent view among the "freshman profundity" set that if you've arrived at any view that is counter to theirs, then it's because you oppose their political or moral value system. However, a good understanding of the world rarely yield beliefs that cohere with the kind of convenient, value-oriented rhetorical slogans that people get self-righteous over online.