You're taking one case and applying it to all. Not all trans people experience dysphoria. Trans people existed before the birth of Christ and are well documented in Greece as well as in Hindu mymythology. This isnt an opinion, theres zero proof that trans is a behavioral issue and that's pretty wild you're putting it in the same category as something I myself have which untreated in many, becomes a behavioral issue.The USA isnt the whole world btw.
Its done in Canada, but rare. Here is a trans youth saying not allowing easy access to gender affirming care is endangering youth: https://www.cbc.ca/news/health/gender-affirming-care-canada-1.6967503
Try to have some compassion, especially for trans kids who are already at odds with society because of people like you who fear what you dony understand.