I did a quick search to see how feminism has influenced the definition of rape over time.

A few interesting articles came up, but I'm going to share one about a feminist campaign to update the FBI definition of rape. The article claims that they were pushing for greater equality -- inclusive of men -- but a careful reading of the text reveals anything but this.

The campaign was organized in 2011 by Ms., the Feminist Majority Foundation, and the Women’s Law Project feminist magazine. Their primary method was to bombard the FBI with thousands of emails to convince them to update their definition of rape.

The only problem? The definition that they changed it to is not gender neutral. And it also looks suspiciously similar to other rape laws that MRAs have called out as being sexist in the past.

http://politybooks.com/feminists-successful-in-changing-antiquated-rape-law/

If you notice, rape is still defined in terms of "penetration". The main point of their campaign wasn't to define rape in gender neutral terms, but was to expand the definition of what counted as "non-consensual". Previously, the FBI defined this in terms of "force", but they expanded the definition so that a lack of physical resistance wasn't a necessary part of this definition.

I guess by their logic, this applies equally to male victims of rape, making it "gender inclusive". So they pulled out their normal feminist rhetoric and claimed that it also helped men. Their only example, though, is how it is inclusive of a man raping a boy (ie, not a woman raping a man or a boy).

It is obviously an important point that you can rape someone even if they don't physically resist. But it's also clear that feminism is not interested in true gender equality on this point. And it's troubling that feminists have used their power and influence in society to push our understanding of rape in this direction, and have even successfully changed legal definitions to match their views.