[Captain.Remy]

Originally Posted by Enid

Sexual orientation shouldn't exist. Sexuality is just one way of defining you are and what you prefer. We all have our preferences. There's no reason why we should all belong in different groups.

But on a sociological aspect, having preferences lands to forming groups between people. It's just natural for people who like the same thing to gather together. So who says "preferences" cannot escape the notion of "groups".