I think if anything the teasing was directed at men. It sounds like he was implying that women aren't afraid of "poopy diapers" and neither are HIS men, but other men fuhgetabout it!
OP from what you're saying about your management situation I can totally appreciate where you're coming from. Sometimes things run smoothly even without management's help because people are doing what they are supposed to. When someone comes in and is ready to "move the unit in a new direction" or something like that ... if it ain't broke don't fix it!