I don’t know if you have seen this post by LogisticEarth in the Trayvon Martin thread, but I think it applies to this topic too. If you cannot prove that there was a threat, how can you know there was one? Anyway, I want to requote the end of his post:
While you might not feel comfortable saying there had not been a rape, you can’t say that there was one either - unless new evidence comes to light. With the limited evidence, all we can say is that the woman felt threatened, and that was why she “consented”. It would be unfortunate, but without evidence demonstrating that the man threatened her, we cannot know if it was rape.
My point is that you cannot interpret every action in terms of that social structure. Just because a woman has sex with a man in a male dominated social structure does not mean she was raped. We should oppose any social structure that includes aggression, but not every action is made in context of that social structure. If a man and woman have sex, whether or not he threatened her can only be determined in that relationship. It cannot be determined based on the existing social structure. The existing social structure is relevant only insofar as that particular man adheres to it.