Women's issues were more obvious historically. When women cannot legally vote that is an obvious problem. Most men's issues are places where they at first appear equal but are not. Things like you can ask for help, but culture means you lose face and so would not. Or nothing stops you from going to a shelter if you are abused - except that most shelters accept women only and so odds are even if you could overcome culture there isn't a place to go. Or police automatically arresting men in domestic violence cases - as if women cannot abuse their spouses, which the law probably doesn't require leaving it up to police discretion even though they appear to not be investigating.