With all due respect, a lot of us here are much older than you are. I'm closing in on 60 myself. So we have had a chance to observe this over a much wider time window. You also haven't personally been married. It's one thing to observe marriage from the outside; it's a whole other thing when your skin is in the game.
I can say without hesitation that women HAVE changed over the last 40 years. I see it every day. Women today are uglier, fatter, nastier, more entitled and more hostile to men than they were circa 1980. Are there still good looking, feminine women out there? Of course. But there are a lot fewer of them and they tend to be more concentrated in urban areas. Back in 1980, fat ugly girls are the exception; around where I live, they are the rule. Even better, grab a HS or College yearbook or YouTube video from 1960 or so and compare it with on from present day. Almost everyone, both men and women, Iooked better back then. I realize some mongers disagree with this assessment, but a lot do agree with it. And in a sufficiently large group, no one agrees on everything.
It's not that I'm bitter that they won't suck my dick or fuck me. The truth is I really don't care; I wouldn't touch most Western women these days with a 10 foot pole, even most of the younger ones. That's why I like Asian women. They take far better care of themselves, are more feminine, and appreciate men more. I've been saying the same thing for many years now (both here and on Spahunters).