Perhaps you can only understand sexuality through a binary system of insipid sexuality which exists opposite one filled with full blown pick-up artists and moustache twirling Dickens characters?
Actually I understand sexuality solely through the aid of a refitted storefront mannequin taken from the broken, smoking wreckage of an abandoned Sears and the copious Historical Documents of the Vivid Video Corporation, so naturally I can't possibly appreciate how wonderful and fluid it must be for an honorary Deltan like yourself. Nevertheless I do know enough about how stories work and how many possible explanations there are for developments therein to be able to wonder about why someone would fixate -- in Vivid fashion, as it were -- on sexual explanations that appear largely superfluous.
For example I have heard tell that Voyager was what Normals call a "PG" show, which tend to be prudish about sex generally and rarely focus on "sexual heat" between regular characters. So it would not naturally occur to most viewers to wonder whether Kes' and Neelix's apparent lack of a Siriusly Freaky Sex Life must have meant that no sex was happening or that it must have been insipid and "infantile" (?!) if it was; indeed it's pretty normal, I'm told, to take PG shows to be agnostic about such questions unless they explicitly tell you something.
Of course it could be the truth was just lying there, waiting to be discovered by a Multi-Dimensional Sex God. It's just not the first explanation I'm running with, I'm sure you understand.
And if it had been a male only Takaxian colony?

Then clearly he would have been discovering his latent bisexuality, obviously, since characters only do anything for sexual reasons?
