I disagree about them not wanting to actually be in a relationship, but I think what's happened is that they're so used to being single and free, and never having been in a serious relationship for that long, that they really have no idea how to do it, and it's probably a lost cause. They're now realizing they have to get started right now if they want to have natural kids, but they're not prepared to make the sacrifices you have to make in order to be in that kind of relationship.
As someone who was raised by a single mom, it's a horrible experience, and prepares you for a life of never being able to be successful in an adult relationship, because you've never seen such a relationship except maybe on TV (which we all know is not reflective of reality at all).
I do not see a good future here for our society. I'm not a social conservative in most ways (I'm a big believer in poly relationships for instance), but what I'm seeing with the 30-45 women makes me very worried for the future of our society. Maybe the Millenials and Gen-Zers will do a better job than us stupid Gen-Xers; they seem to be much more open-minded and willing to try out different relationship styles, rather than not having relationships at all.
From what I've seen, I don't think they actually expect to meet George Clooney. After living with their independence and high paying job, 100% of which they can spend on them-self, usually enabling tons of international travel. They don't actually want to settle down and put work into a relationship, but their friends and family constantly pester them to do so.
So they settle for appearing desperate to keep their friends and family happy, but keeping standards high so that either the sacrifices to have a relationship would be worth it to them or they don't get a relationship they didn't want anyway.