I know. I was married to a much classier woman for 29 years. I don't blame anyone for feeling desperate and such a feeling can cloud judgment. Some single women over 40 feel a tremendous urge to marry and the demographics don't favor their chances. My attitude is fairly common among widowers I've met and that's not helping the situation I suppose but I just don't see a compelling reason to marry. Maybe that'll change.
Women haven't been taught manners and decorum for a few years now and well, it paints those of us who have been taught the proper social graces in a bad light.
I know many single women over 30 who are alone and with no prospects. Many feel that urge you are talking about, but the problem is that along the way they have alienated a lot of men. That's ok, it happens, but they can't legitimately expect to enjoy the benefit of a good relationship with a good man at a later stage in life when they have spent a decade or more alienating and not cultivating relationships with those men.
While some of them offer a lot in a relationship, most don't offer men anything genuine and unique that a younger woman can offer them. It's a no-brainer: deal with the pushy 35 year old or deal with the pushy 25 year old. Many men just gravitate toward the freshness and vitality of youth. I know I do.