If it was a problem with women in particular, I suspect that we'd see homosexual relationships at two to three times the biological rate, as every bisexual person looking for a relationship went for one with less friction. This sounds a lot like something we can test with Science!
H(null): We will see no increase in homosexual relationships close to the size of the bisexual demographic: People just don't want to deal with having a relationship due to, in spite of, or concurrent with shitty prospects, too much stress, and a corporate culture that's toxic to starting a family.
H(1): Homosexual relationships will expand to everyone who isn't constitutionally opposed to faggotry. We will likely see a tripling of homosexual relationships compared to our control group, representing the entire homosexual and bisexual demographics fleeing a toxic heterosexuality.
H(2): If we see some intermediate effect not trivially explained, we should investigate to see whether cultural condemnation of faggotry is intense enough to dissuade anyone who could have an emotionally fulfilling relationship with another of the same sex - cultural confounding effects or a mixture of motivations are likely results, but it is impossible to accurately predict which, precisely, at this point.