It’s not so hard. It’s probably best to quote what the author wrote in the comments of her post:

“‘Golden Uterus Complex’ is a slur against women. It‘s not even a real psychiatric term, just slang. It dismisses all women who have real life experience of things men don‘t go through first hand—like child birth or sexism. In short, when guys don‘t have a dog in the fight but they still think they have an important perspective, they whip this baby out to cry foul instead of giving a woman credit for her experience and respecting her opinion.

Maybe it‘s annoying to you, but it‘s legitimate to the women involved.”