They are not hate crimes because hate crimes against women don't exist. In practice.
Also the sheer scale of it. It is everywhere. If you want to be really sickened, head over to Feminist Chat and click on the thread called "pelvic exams on unconsenting women". In the not too distant past, on the NHS, medical students and trainees were allowed to "practice" on women under general anaesthetic, who hadn't been asked. Some of the links describe lines of medical students, going up one after another to assault the unconscious woman. There is one poster, a patient, who describes waking up in severe pain because so many people had been allowed to "practice" on her.
I mean, whilst she was in fucking hospital, having surgery. The one place you ought to expect to be safe. And although this practice is not allowed now, how many people who are still practising now were trained this way?
It is a rape culture and ALL aspects of society are complicit from the man lurking in an alley to passersby to the police to the judge and even maybe your GP if you're unlucky. And that OP is why there is no outcry.