I think it is kinda weird as well to have orientation changed. This is not realistic.Stockolm syndrom seems to be the only roleplay way to change the sex orientation of a slave, sure (or a very hard blow to the head).
There remain a lot of work to do on the gender management in the game with some limitations to a gender hard to understand with a lot of fixed choices used where some could be partly random (for example gender of ennemies in events or restrictions in jobs) .
It's also right concerning the slavery, the only thing that would prevent a slaver from enslaving would be opposition to strong, beeing with 4 companions and not beeing able to enslave an elderly couple or a small family is very frustrating.
It's good to have certain actions not available for specific orientation and corruption linked to "allowing" certain things nonetheless.
I believe the dev wants to keep things realistic as much as he can while introducing apocalyptic world with some things in there that make sense and could happen.
This does open later possibility for addition of sex change hospitals in XYZ town where for example gays want to be turned into transmale.
Although, personally, I don't really care for such things much.