I'm gonna need a quote on that. The only mention of males in particular is in the Ultimania, where it just describes their society as segregated with both sexes living in different villages.
XIV DOES mention that the males are really aggressive, which may be in large part because of their training, but the one male we run across in a sidequest is nice enough to not shoot us on sight (as, again, a technical limitation as there are no males in-game right now, we only hear about it afterwards).
Indeed! I chuckle when the random generator makes a Suncat a Nuhn, which would mean they left their tribe to go adventuring and would not be a nuhn anymore
