Terry Pratchett notes that the distinctions would seem to be that (in his example) Trekkies, contrary to Manchester United admirers, have under no circumstances trashed a train carriage. Chicago Cubs enthusiasts, but even they aren't as lambasted as other fandoms. While this surely applies to Gender roles, it also use to all sorts of other issues as nicely these as Race, Religion, Nationality, to even issues these as fanbases and additional.