On the other hand, I have heard therapy for gender dysphoria (GD), such as that which addresses GD in children, can be highly effective in resolving whatever issues that are causing the confusion in the first place.
But lower than pre-transition.
> but I believe that was also addressed and found unconvincing.
I can't say I understand how a paper would account for systemic discrimination, but even if they did so successfully, treatments for most things don't have 100% rates of success.
> On the other hand, I have heard therapy for gender dysphoria (GD)
Yes, and this is normally part of treatment for GD for anyone. It just very often doesn't work.
The British polling institute advises a sample of 1000 for a total UK population of around 60,000,000. Trans people make up 1% so roughly 600,000, with that in mind 57 doesn't seem that low?
I know it's just one data point...
They would treat it as an illness, whether or not they prescribe treatment.
People who hear voices don't have a problem because they hear voices, they have a problem because in general schizophrenia presents those voices as hostile and aggressive towards the person. People who hear voices that are positive or helpful (which is not uncommon, though it seems to be less common in Western culture socialized people) don't have a problem, probably don't even need treatment if they do not cause any distress.
That trans-people live happier lives after transitioning means that the treatment they receive (hormones,gender reassignment surgery, remembering that all of those are quite optional) is completely adequate.