[@FrozenEcstasy] I kinda hinted at it in the canon section, they're trying to select people who are [i]viable for reproduction[/i] which means they are [i]trying[/i] to not end up with any gay people onboard simply because it's easier for people to actually y'know, do the nasty rather than artificial insemination. Obviously depending on the characters skills or what he knows (like if he's the smartest man on Earth) they'll be like "Nevermind his sexuality, we need him on board!"

How other characters react is upto the players, I hope that answers your question.