And why pinpoint ourselves into categories?
I think that is a major issue humans have. Through naming or better through differentiating something we give shape to things, where never would be one. These categories may never have existed. I mean homosexuality isn't a theme of modern times but the problem is still there.
If homosexuality were an "ordinary" thing, people wouldn't react like they sometimes do (some even with disgust).
I've found a quotation of a polish author:
"Liebe heißt, sich mit der Wirklichkeit begnügen."
translated:
"Love means, to be content with reality."
I liked it very much because there was so much....truth in it ; )
Das Leben meistert man entweder lächelnd oder überhaupt nicht.