Well, there's three problems with this:
The first I already wrote about. It's a fantasy world. There are going to be "unusually" strong women because of some fantastic element in their background, such as a distant ancestor who was a giant, being blessed by a god of strength, magical accident in youth, ate the berries of the Power Tree, was conceived in a temple to the elephant god, weird random mutation caused by normal DNA in a magical universe, etc. So it's actually more realistic for there to be no cap.
Unless, of course, you're playing D&D in a setting with no magic, no non-human races, no fantastic plants or animals, and no gods. Because there are so many of those D&D settings.
Second, all your examples are already going to be extremely rare because they will be limited to the PCs, and there, maybe even a single PC since it's unlikely that every female PCs will be playing a warrior. So one "extremely strong woman" out of how many millions of women on this planet? Already rare enough without a cap.
Third, women are, realistically, more agile and healthier then men are, so for the sake of "verisimilitude" men would have to have caps on Dex and Con... yet somehow, I don't think most men who advocate for Strength caps for women are going to be happy with those limitations.
So basically, your choice is: make your world incredibly unrealistic for the sake of pure sexism, or don't.