Some really good points. Over the years I've learned women are usually the ones that blow an opportunity. Could be gossiping with idiot friends like you pointed out, could be taking the hard to get nonsense way too far so the guy gets annoyed and moves on, or it could even be just not having any courage to actually go on a date (this is actually a problem with modern younger women).I think a big problem in these situations is that women lean heavily on the opinions of their friends over anyone else. I imagine a lot of the single 30 somethings have skipped on ideal men in their past based solely off their friends nitpicking them during a gossip session.
If you are going to find a much younger woman I'd look very closely at the company she keeps. Because its likely that "he's way too old" is going to be one of the things her friends would use to keep her single if you are looking to marry someone younger.
Even then you have to account for the family, particularly if you are looking for someone "trad" is her dad going to have a problem with the age gap? Even if her family is conservative and Christian etc it doesn't guarantee they would give their daughter away to someone much older. The prejudice against age gaps might be less among that demographic but it still likely exists.
And it is absolutely important about who they hang out with. I've met women that I thought were really nice at first, eventually see them hanging out with idiot, drama-filled, gossipy women, then eventually start to see that she's just like them.
It's pretty funny how women will act like annoying children, then get mad at you when you don't want to pursue them anymore.