The situation is so different from times past. Women obtain fancy degrees, continue onward to get fancier degrees and go even further to garner what they consider to be awesome career slots. They spend their twenties either riding the carousel or carousel watching. Before any of these ever happened, their mind was filled with vast quantities of self-esteem.
As for the fella, they are discriminated against in K-12, not welcome at the University and very often spend their twenties doing a bit of this and a bit of that (but not much action for sure). Often little of this is really beneficial in the preparation of becoming a future husband and father, which is just about the farthest thing from their mind.
What happens when they hit their thirties? The women decide that it is time to marry, and the guys are at least somewhat surprised to get some attention. Many of these fellas were either defacto or explicitly MGTOW, but with some attention, they maybe will change their minds. As youngsters, they saw what happened to their Dad’s and Uncles, and decided that marriage was not for them. But then again, a steady supply of sex is very tempting.
What do the women see? They see a bunch of guys who seem to be underachievers, and are surely below them in stature. They wish that there were lots of fellas at least equal to them in stature, but no, that is not how it is. Women definitely want to marry up. This was drilled into me as a child growing up in the blue pill world. Basically this is such a strong desire, that even the blue pill doctrine could not hide it.
So these women hold their noses and take what they can get. Will they be happy with it? What do you think? What will be the end result? Remember that it is all for the children.
P.S. Note that there is a bit of a marriage strike going on, but it is only gradually gaining steam. There are still lots of marriages happening