No, it is not that easy to find desirable men for large majority of young women. No, women can not hop relationships as easily as you seem to believe.

Also real sociologists do not claim what you claim. They have a lot more nuance into it and in terms of marriages, talk a lot a lot more about economy and it's affects.

Your version sounds like something that emerges on chat when people cherry pick half understood studies, not what sociologists says.