What is need to be said here is that we will never see a Incel Woman, they dont exist, They never have.And the idea that there is no wall, that women will always be attractive to men and always be able to conceive healthy children, is the sort of stuff that keeps women from getting married. I think that does far more harm, especially in places full of desperate men like the USA, than the hypothetical possibility that men will refuse to get married because women age.
A 50-years old woman will still have men lusting after her, but the older they get, the worse are the men going after her. A 50-years old woman will never defeat a teenager girl when it comes do getting the best man, the alpha male.
If a woman decided to get married at her 40s she will only find creepy soyboys, men paying child support, crazy incels among others low quality men.
But the media tell women that they are goddess and they deserve a CEO as their husband, and these women, even being of low quality (old, liberal and with poor minds) refuse to marry a man of their level.
That why the statistics show us that mostly of the educated women between 30-40s are single.