Unfortunately that isn't true. Genetics shapes culture. One of the interesting things from Mead's "research" was that Samoan women were having a lot of premarital sex in the 1920's. Yet somehow none got pregnant but that was overlooked.
When you force people too far out of their natural roles, bad things happen. There's a whole lot more to this and its fascinating to see how people don't realise it.
I respect that feminism is the moral case. Genetics is the scientific one, which currently is not respected. There's a balance between the two