This is how to bring about a tipping point - get men to recognize and call out sexism.  While this kind of behavior is sadly quite commonplace, attitudes and behaviors can change quite quickly.  Just think how much more common it was ten years ago to have &quot;gay&quot; as a widespread pejorative - I almost never hear it now.  I think the rapid reduction came from straight people recognizing the offense it caused and starting to call out people who used it.