"That transsexuality would no longer be viewed as an organic illness, because the gender of a person, trans or not, is not biologically programmed (this is the organic or physical dimension of depathologization);" (STP Best Practices Guide (pdf), p. 17)
Umm, no. Darlings, dearies, do not pretend to speak for me. Transsexuality was very much an organic, physiological illness for me. My sex and gender seem to be biologically determined to be female. There was precisely fuck-all I could do about it, except conform to the fact that I'm deeply unhappy if I a) have to be on wrong hormones, b) have to have a wrong kind of bodily configuration and c) have to pretend to be a man which I am not, and I stopped being unhappy precisely when I a) had the right hormones, b) a suitably configured body and c) could (safely) stop the stupid pretense, and be the woman I was and am in the eyes of other people, too. That required physiological treatments, and those treatments fixed my very organic body. So yeah, it's an organic illness all right.
While I'm at this, I'd also like to point out that while it's wrong to push Western ideas on non-Western people, I've no personal objection to Western ideas and paradigms - I'm Western, and a European myself, and wouldn't want to appropriate some other culture's way of doing sex and gender for mine.
In short: STP folks, you're mistaken at some points. Stop pretending you're speaking for all people who are identified as trans by the cis majority. I may be trans in their (and maybe your) eyes, but I sure don't feel like trans any more much at all. Our needs are different, don't subsume mine under your agenda.