I tend to think, like Doug, that Yoshie's brief sketch outline of the personal rights and freedoms concerning sexuality is essentially an elaboration, or idealisation derived from western societies (confirming Marx's view that the more developed society shows to the lesser its future).
But look forward, like Olaf Stapledon, into the future, and there seems no reason to assume that sexuality would have the heightened importance it does in present-day New York, or indeed Teheran.
Like those sixties radicals, I rather assumed that sexual possessiveness and identity would become less important through liberation, but instead it has got more so.
There is, though something of a dialectic at work. The ubiquity of raunch is something like what Marcuse called 'repressive de-sublimation', a collapse backwards from the discretely formed identity into generalised polymorphous perversity.
Perhaps the right answer to Ahmadinejad is 'you are mistaken, there are homosexuals in Iran, but none in America'.