My first thought is that you've identified a core problem with life on our little world, this dehumanization of women corrupts and erodes our collective consciousness, there's an imbalance, I think that it creates discomfort and this causes men to react negatively. Specifically, if a woman calls bs, and she's correct, any man present has already failed his imagined role as the "alpha" and allowed a woman to suffer, males might imagine themselves as a hero, in this moment he's a coward, he's so far from being a hero (or even decent) that he's ashamed, from a feeling of shame it's easy for him to blame the woman for calling attention to the bs in the first place, somehow that's easier than doing the right thing, he might just get onboard with the sexism. It's difficult to articulate, but generally as a man I catch myself "feeling sorrow" for myself just long enough to realize that the real opportunities to show bravery are constantly presenting themselves to me, I pick and choose, the people that have no choice are the bravest people I know, women.