I have written about this repeatedly on FR.
The number of people who are legitimately trans is .01% of the population, usually the result of rare genetic defects that cause endocrine disorders giving rise to gender dysphoria. Not everyone born with these disorders will have gender dysphoria, but even among those that do, there is NO medical reason to transition a child...EVER.
It is statistically impossible for all these kids to be trans.
If there is no underlying medical condition, then it’s mental. Surgery won’t fix that. They need therapy, not butchery.
In many (most?) cases, the mother needs therapy as well. Munchausen’s Syndrome by Proxy is at work. Along with a good old fashioned social mania.