what do you mean by "not proven to work?"
and what do your sources say about the causal factors of these co-morbid conditions?
What your referenced study showed was that while some no longer deal with gender dysphoria many do and the difference between the two groups is the prevalence and severity of the symptoms of gender dysphoria at an early age.
and how is this blanket dismissal respectful?
Paul R. McHugh, the John Hopkins Psychitrist has been widely criticized for his misrepresentation of research findings of others.
From your link: "He also reported on a new study showing that the suicide rate among transgendered people who had reassignment surgery is 20 times higher than the suicide rate among non-transgender people."
The study in question is your previous reference the Cohort study in Sweden. The study's author's were displeased by the misrepresentation of their work and the lead researcher
Cecilia Dhejne expressed her concerns about Dr. McHugh's misuse of the study:
Dr. Paul McHugh and Christian Integrity