I like nuanced comments and you make cogent arguments. However, I believe that most people in group 1, are in fact aware of the problem of their behaviour and are willingly ignorant of it. This is because if they made any unwanted advances against women, even if the women didn't tell them to stop or publicly humiliate them, they surely ignored or tried to get away from the situation. At the very least the victim did not enjoy it and that is feedback enough. Anywhere in the course of history where there was a stronger party forcing themselves on a weaker party, the pain of the weaker party is visible in plain sight and ignored by the stronger party.

Now the question boils down to whether a perpetrator considers the victim to be a human with a standing equal to his/her own. The answer to that question has been a resounding no, whether it was slavery or war crimes or sexual assault.

To summarize, lack of feedback cannot be the reason, willful ignorance and dehumanization perhaps is and that is something the victim cannot be tasked with rectifying.