But it does exist. Diagnosing it wasn't the issue, it was labeling it as an illness that was. Of course, this opens the big question as to what is or isn't an illness, especially when you begin to look at things given hypothetical accepting societies that may not currently exist.

> But it does exist.

Sure it doesn't, but the context was diagnosing it. As in recognizing it as a disease.

Can you diagnose an atypical characteristic without considering it a disease?

Definition of diagnosis is literally:

    the identification of the nature of an    
    illness or other problem by examination
    of the symptoms.

Unless you are suggesting that any atypical characteristics is a problem, and that for example someone can diagnose you for having green colored eyes.