First a bit about the decline:

http://www.rooshv.com/the-decline-of-american-women

Now for a few tips women can use to improve things:

http://www.rooshv.com/8-things-american-women-must-do-to-make-themselves-more-attractive-for-men

I'm not a huge fan of Roosh, but some of his articles really resonate with me, probably because I've also had the benefit of spending many years overseas and travelling the world. That travel and exposure to other cultures gives us a unique perspective on the state of American women compared to those outside western culture.