Let's just call a spade a spade.
If you think that a movie in which rapists and murderers are killed is "demonizing men" everywhere, you have an utterly twisted view of men. This film no more demonizes men than any other film in which men play the villains. All men are not rapists, just as all men are not serial killers. A film that demonizes rape and the murder of innocents is not a film that demonizes men. It only demonizes men who rape and murder.
You MRAs like to prattle on about how you're disgusted by the gender assassination you claim is happening in these films, but be honest: what really bothers you is seeing women triumph over men on film. It's the same reason you dim bulbs troll films like You're Next at every opportunity. You're so warped, and so insecure in your own gender, that you identify with the rapists and the murderers just because they're up against a woman.
Seriously, how many of you have made this same thread or these same teary-eyed posts on the Deliverance boards? All of the villains in that film are male. It is a rape/revenge film, no matter how you try to avoid it. It just so happens that you're perfectly comfortable with Burt Reynolds killing a bunch of hillbilly rapists, yet totally offended when the person dealing out the revenge is female. Why is it acceptable for a man to exact revenge for his rape, or the rape of a guy that he knows, but not acceptable for a woman to do the same? Let me guess, it has something to do with "feminazis".