Some men definitely hate women. Largely to do with sex, I imagine. They see women as the gatekeepers to their sexual fulfilment. I'm not sure what comes first, the misogyny of the lack of girlfriends, but it's fairly self evident that one is dependent upon the other.
The feeling of entitlement is fuelled by society, pornography, the media which portrays a fantasy life that most people, men and women can never achieve.
I don't think most men hate women. I do think many see women as lesser, though.
The numerous studies which show, for instance, women who talk for 30% of the time in a meeting are seen by men to have dominated it, the unconscious bias in CV selection, etc.
The ongoing threads here on mumsnet, where women are treated to abusive behaviour, from being ignored, to being coerced when they don't want to have sex. It is seen by these men that that is fitting behaviour towards a woman.
If that's not treating them as lesser, I don't know what is.