@lechiffre55
If you want to have a crack a defining transgender, have at it. I have no such desire because I don't believe it, but i still need to be able to use language to describe who I'm referring to.
It's not any of us who need to define this. It's anyone who is proposing a scientific study on the benefits of giving puberty blocking medication to physically healthy children.
You have suggested that some (a tiny proportion) might benefit. So you must believe that it is possible that some condition might exist which would make this treatment beneficial for this tiny minority of children. We need to define what the condition is and be able to accurately diagnose this condition and accurately predict which children with this condition (if any) would benefit from the treatment. And also weigh the benefits against the harms.
But you can't devise a study without defining what the condition is which is being treated and what would constitute a positive outcome. To my knowledge these have not yet been defined. Dr Cass mentioned the possibility of a study, but I don't think she gave any such definitions.
So it amounts to devising a study of an undefined condition, with no accurate diagnostic criteria, where the positive outcomes of treatment have also not been defined. We need definitions.