I don't know who's teaching "that they were designed for it," at last not in the last fifty years.
They feel stultified because they always think they can do better than what they've got.
Hypergamy. Unrestrained. Very problematic.
We live in a fallen corrupted world, we don't naturally desire what we’re designed for. That's a human reality, not just a chick thing.
Accordingly both Men and women want to screw like dogs in a pack. Men with a harem, women with an alpha provider and half the rest of the pack. A good cad knows exactly how easy it is to nail another man’s wife.
But if we act on those impulses, as opposed to a higher order, society collapses and we get the third world. Mankind’s “natural” state. Follow the higher order and you become your own little Israel surrounded by “nature’s” man.
I think that's true of many people. Not just women.
I think it's a sad way to live because we live in such a world of plenty. Even our so-called poor live in luxury that the rich of a hundred years ago could only dream about.
I think being satisfied with what you have is the key to happiness. Now there's nothing wrong with working hard to do even better but if you can appreciate what you have today - that is on of the best gifts that you can give yourself.
Your comment reminds me of the “Husband Store” joke:
The Husband Store
A brand new store has just opened in New York City that sells Husbands.
When women go to choose a husband, they have to follow the instructions at the entrance:
You may visit this store ONLY ONCE! There are 6 floors and the value of
the products increase as you ascend the flights. You may choose any item
from a particular floor, or may choose to go up to the next floor, but you
CANNOT go back down except to exit the building.
So, a woman goes to the Husband Store to find a husband.
The 1st floor sign on the door reads:
Floor 1: These men have jobs.
The 2nd floor sign reads:
Floor 2: These men have Jobs and Love Kids.
The 3rd floor sign reads:
Floor 3: These men have Jobs, Love Kids and are extremely good looking.
“Wow,” she thinks, but feels compelled to keep going.
She goes to the 4th floor and the sign reads:
Floor 4: These men Have Jobs, Love Kids, are Drop-dead Good Looking and help with Housework.
“Oh, mercy me!” she exclaims, “I can hardly stand it!”
Still, she goes to the 5th floor and sign reads:
Floor 5: These men Have Jobs, Love Kids, are Drop-dead Gorgeous, help with Housework and Have a Strong Romantic Streak.
She is so tempted to stay, but she goes to the 6th floor and the sign reads:
Floor 6: You are visitor 31,456,012 to this floor.
There are no men on this floor.
This floor exists solely as proof that women are impossible to please.
Thank you for shopping at the Husband Store.
To avoid gender bias charges, the store’s owner opens a New Wives store just across the street.
The 1st first floor has wives that love sex.
The 2nd floor has wives that love sex and have money.
The 3rd,4th, 5th and 6th floors have never been visited.