They literally are though. In western civilization, women are the gatekeepers of sex. Every sleazy asshole who brags about banging all the women he has was allowed access to doing so. There is no effort whatsoever on the female in our society to achieve sexual intercourse and the men that slept around were ostracized as cads and lowlifes and the chastity of women was elevated.
There's already enough scientific proof and data to make it clear that women who engage in promiscuity grow up to be far more unhappy and unstable than those that do not.