But they are not mono gendered naturally... i dont know if it was bad writing and needing parts of the story to happen or if it was intentional.
"Moclans only birth a female 1 out of a 1000000000" or whatever, yet, Borus' mate was a girl, their kid was a girl and there was a secret girl exile, so it really is that they are artificially maintaining the male mono-sex as 3 known cases in 1-2 generations seems "more" than what was stated. Also they seemed to have the operation ready to go, rather than even a line "The operation is done so rarely that there is a delay" or something,