Adverse life experiences related to being transgender is exactly what we man when we say "being transgender inceases a person's risk of death by suicide".
There's no judgement of trans people in that comment - indeed, the point is to make society more accepting of trans people.
The data simply does not support that conclusion, according to the study itself.
"Respondents who said they had received transition related health care or wanted to have it someday were more likely to report having attempted suicide than those who said they did not want it."
"The survey did not provide information about the timing of reported suicide attempts in relation to receiving transition-related health care, which precluded investigation of transition-related explanations for these patterns."
I agree that society should be more accepting of gender-nonconforming people regardless of their gender identity or approach to transition, if any. I wonder if this lack of acceptance is the cause of suicide, rather than dysphoria which in some cases is alleviated through medical intervention.
Which was weird to me because from the evidence we have they are.
The tl;dr is we don't know, so we shouldn't frame our decisions and policies as if we do know.
Specifically in this question: is a surgical/endocrinological approach or a mental health approach more likely to result in positive outcomes?
IOW "being transgender" cannot be identified as a factor putting someone at higher risk. It could be comorbid mental health issues, it could be adverse life experiences related to being transgender or gender-nonconforming.