I wonder (doubt) if they've ever been abused. It's hard for someone who has been abused to come forward, let alone stand up to an abuser.
Besides, men outnumber women in tech by a very large margin. It's on our shoulders to help women fight back. Strength in numbers is a thing, and having men who speak up on their own, and who support and reinforce women who come forward can only a be a good thing.