I recently heard something interesting about custody granting:
There were big labor law changes back in, uhh, whenever it was. Before that change, custody was mostly granted to MEN. Then, there were laws about how much children could work. And, over time, they were being expected to go to school longer. As more years of a child's life shifted from asset to liability, custody was awarded more to mothers.
Ok, now, on the subject of the thread. First, you have the question worded wrong. It's not a CIS related bubble. It's a "women in their 20s" bubble. Second, the answer is NO. It's not going to pop. You need to accept it. Don't complain about it not being fair. Deal with it.
Also, your perception and expectations were likely shifted by being in a very specific bubble you've described during college, where the students exist in literal social bubbles with mostly just other students. Back in college you had men and women grouped together - all within a small age range and a small geographic area. And in your college, with people giving many guidelines about how you're allowed to act. You were in a "fairness bubble".
Well... you can only try to force fairness for so long. And that fairness bubble has popped. Now, "you're in the real world". You're with the big dogs now.
Understand this, and stop thinking that it isn't fair. It probably actually IS fair. In the world of man-woman balances, no single parts are 50-50. The women your age have just entered into a small part of their lives where they get way better than 50-50 (in some aspects, mate choice being the one we're discussing here).
I've posted these charts here before for young men posing basically the same questions. Look:
Now, also consider that within overall mate desirability, men place more emphasis than women on physical attractiveness. Women have more balanced considerations. They consider other factors than "is he hot?". These mostly fall into these categories: is he safe (will he not hurt me?), would he be a good provider?, does he have good genes?, would he be a good long-term partner for me? (is he funny, does he make me feel good? will I not get bored with him?..).
Men fall much more to the side of the scale we could describe as "oh man, that girl is hot. I want to be able to fuck her every day". So.. look at the chart above. Who do men want to fuck every day? It's the women your age. These women have just left the college bubble where they were hanging out with college guys like you, and now they are out in the real world. Playing with the big dogs. The 30 year old guys want them. These 30 year old guys are like you except they've had more years to sort themselves out. They have more money (well...). They have more career success. They're better with women. They've learned what works. They're still good looking. They have everything you have, plus 5-10 more years of improvement. And there's the 40 year old with more life experience and maybe way more income. Oh, and there's that 50 year old guy that is partner at a law firm or CEO somewhere... he just got on TRT and is doing crossfit and he now has the same sex drive and virility as you.
So all these single men age 20-60 are going for the women in their 20s. The men your age - the little male foxes in their 20s - are suddenly out of the "college fairness bubble" and suddenly in the "all the men want a 23 year old girlfriend" bubble. The little foxes are now competing with the wolves. Of course, some of the women are picking wolves. Why would they want a little fox?
That's the bubble. That's how life works. A lot of this is likely tied to thousands of generations of evolution, and now there are also tons of social norms build around that.
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It can be tough when it feels like the rules suddenly change. Or when it doesn't seem fair. Your response is important. Are you going to yell out "THAT'S NOT FAIR!", grab your ball, and go home?** Or are you going to keep playing the game, have fun with it, and learn how to win?
** = join the red pill / MGTOW / whatever it's called now side? You can see some of the guys here did that. Often their reason is basically "it's not fair...". First, having fairness all the time is not even a real thing. Second, dudes thinking things aren't fair is likely a symptom of poor understanding/empathy. There are also many reasons why things aren't fair for 23 year old women. Heck, go ponder at that first above from the perspective of a 45 year old female. Something sure ain't fair for her.
This isn't all black and white. In a world full of grey areas, you can still win. You are absolutely not limited to 4s. ERE is a good example of being able to win in a world where work and money totally suck for most.