Because it works.
To quote Thomas, a frequent feminist poster of this group:
"But you should know by now that feminism is about gaining and keeping rights and opportunities for women."
https://answersrip.com/question/index?qid=20131124155807AAjEFOy
As techniques go, continually claiming that huge numbers of women are being raped and by the way rape is worse than murder, well, it basically garners more resources for women. Since that is the fundamental goal of feminism (as stated by Thomas), it all fits.
And it certainly does garner more resources for women.
For instance, some companies are giving women "women only" parking lots closer to the building so they don't have as far to walk "in the open", and therefore are safer. Men, of course, have further to walk. Men were already more likely to suffer violence than the women, but now are even more likely still.
But they're only men.
And obviously, we all know about women's safe spaces, devoted and maintained especially for women. Often women get essentially free taxi service around campus to keep them safe even though they were less likely to suffer violence than their male counterparts.
Gee, I wonder what would happen if a GUY called up one of these state funded get-around-campus services and told them that he felt endangered and demanded protection, citing the statistics showing that he was in more danger than women were ... I'll bet he could sue his way into 14th Amendment protection.
But he isn't going to get anywhere with private companies offering similar services for their female employees.
Ultimately, as we keep giving young women more and more resources in the name of keeping them safe, empowered, making sure they feel equal, etc, boys are falling further and further behind, commiting suicide at progressively higher rates, etc.
Does feminism WANT boys to fall behind?
No - it just doesn't care. It doesn't think about what is happening to boys and men. As long as girls and women are doing better than men, boys and men might as well not exist. They aren't part of the equation. Feminism DOES NOT CARE. It's not hatred, it's complete apathy.
Obviously, many individual feminists acting on their own DO care about men. Individual feminists have sons, brothers, husbands, fathers, etc - and therefore occasionally they are forced to face the ugly truth of what they've been doing:
http://online.wsj.com/article/SB10001424127887324600704578405280211043510.html
But as far as the feminism movement itself goes?
Well, look at the National Organization of Women's lobbying record (the largest feminist organization in the US) and you tell me.
Name me one thing... ONE THING... the feminist organizations have done deliberately that would be to the detriment of women for the betterment of men.
No, lobbying for paternity leave doesn't count since it was originally conceived of as getting Dad home to help Mom out.
The closest we have was NOW stating that as a matter of belief they didn't think that men should be forced to sign up for Selective Service but women should not. However, they have put less effort into changing that then they have into removing individual offensive commercials.
Talk is cheap.
It is my belief that if NOW actually wanted the US Selective Service policy to change, it would change - but they'd sooner eat glass.
By stating they believe women should be included in Selective Service but not actually doing anything about it, they get to say that they believe women should be drafted into the military in the event of large scale military action, knowing full well that in the event that such action ever happens they can change their mind.
The time to change the law would be now when there is no such threat, not when people are staring down a gun barrel. You know damn well that in the event of an actual large scale war, fear would dictate the voting and women would sway the majority.