The clue here really is that a lot of these people have been abused sexually as youngsters. Rather than help them and tell them the truth the Medical community has decided they will continue that abuse by humoring and giving into every whim of mentally ill people.
Not all of them
The ROGD rapid onset gender dysphoria is thought to be a group psychosis brought on at schools for young to middle year adolescents. Internet brainwashing, Japanese cartoons, and television seem to have their influences.