[dragonwriter]

Mansplaining (condescending explanations in which sexist attitudes are an underlying motivation) is, I believe, a very real thing, but also probably exaggerated; people condescend to people all the time, and it's likely to be perceived as being motivated by dismissiveness across a differential in social position (whether sex, race, or otherwise) where that condescension happens to be directed in what is seen as the "downhill" direction across such a differential whether or not that's really a factor in the particular act of condescension.