Men have the option of filing charges. If they don't because they think that would make them sissies or other men would ridicule them for being sissies, that is the choice of men.
If you (men) want this to change, stand behind your male friends who are in this situation rather than laugh at them.
My comment is more directed at people who limit their opposition to domestic violence only against women or by men. In TV ads and shows, laughter follows men being slapped by women. That would not happen if a man hit a woman, nor should it. I saw one show recently where a woman said she could rip off (a man’s private parts) in 100 different ways. Laughter followed. In a preview for a show called “The Good Wife,” a woman slapped a man in the face. We are sending bad messages especially in pop culture, a liberal domain. This isn’t a legal issue. In the political world, politicians will plan and even curb their speeches to only include violence against women. Scott Brown did it in Massachusetts when he ran against Elizabeth Warren, likely trying to siphon off her female supporters.