This gender nonsense, more than anything else, is an IQ test.
You are mistaken.
For a small segment of the population, it is an endocrine issue (sometimes curable, sometimes not) or a genetic disorder.
The number of actual trans people is a tiny percentage of the population. The number of pretenders/fakers/confused is ridiculously high.
My child is in the first category; incurable endocrine disorder. She scored in the top 1% of the STAAR exams.