We can see from human behavior that this is untrue. We are a combination of nature, nurture and perhaps free will (likely).

This oversimplification cuts out the legitimate issues that may affect someone's free will.

As in https://www.youtube.com/watch?v=Pc4j9STclRk (Dr Adrian Raine: The Full Interview) we see free will is a shade of grey.

Yet there are feminists who refuse to acknowledge this and think it's 100% their fault!