This suggested that rape was an outgrowth of some instinctual genetic imperative. Individual men were seen to have no control of their individual urges. Activists rightly identified the reality of the actions of individuals existing within the context of a rape culture.
Individual perpetrators are responsible for their own behavior.
It meant forced intercourse, there had to be some penetration of a vagina by a penis. Historically, men wrote the law, enforced the law, controlled the law. There was language in English Common Law that put into law men's fear that women would lie about having been raped. The violation of the rape was not counted. The rape itself was discounted.