You do need to be careful though in referring to it as a "decision". So long as it's acknowledged that there are deep internal compulsions driving a person inexorably towards making such a decision, and that therefore it was, for many such people, a necessary decision, then fine. The problem is that so many people when calling such surgery a decision seem to think of it as one taken almost on a whim, for the sake of it -- which it isn't. Having said that, not all transpeople opt for gender reassignment surgery (GRS), some being content to present and live the rest of their lives as the gender they identify with without feeling the need to change their bodies to match. But it's a personal thing, associated greatly with mental state and various other factors.
Regardless, though, of your views about GRS, it's a fact that NHS care for gender dysphoria throughout is pretty shocking. Ditto all other mental health issues, for that matter.