You have the right to feel however you feel. Regardless of reality. You never have the right to bully others into going along with you, especially not through the threat of government violence.
I have the right to cosplay as a Klingon. I have the right to believe this is the true me. No one has the right (or the unlimited ability) to control someone else's mind.
However, I have no right to force you to address me as a Klingon or to force you to behave as though I really am one. Compelled speech is a forced lie.
A wise and kind person would advise me against having surgery or drug therapy in order to try to pass as Klingon since it wouldn't make it real.
If you feel you are "really" supposed to be the opposite sex (the incorrect-- but recently dictionary-approved-- use of the word "gender" in this context is intended to muddle the issue to keep people from thinking clearly about it) from what your biology is, a credible doctor who is on your side would try to help you heal by making your feelings align better with biological reality.
As an aside, I'll mention here that the adult men who say they feel they are women-- and have usually felt this way since their earliest childhood thoughts-- are a separate issue from the middle school girls who fall prey to the social contagion of declaring they are "trans". The same word is being used for two completely different phenomena. That's not the topic of this post but may be a topic for a different discussion.
If there's a biochemical reason that your feelings don't match your physical body, a good doctor would address that by helping your mind align with your body by correcting the imbalance as much as possible. A charlatan would encourage drug misuse and mutilation to try to make the body match the feelings, instead. Encouraging drugs and cutting to intensify the problem! This is going to fail most-- if not all-- of the time.
If you come to believe your healthy arm isn't really yours-- doesn't represent the "real you"-- no ethical doctor is going to cut it off.
Just like a person suffering from anorexia, the problem is with the mind, not the body. If the mind is not treated correctly, and soon enough, the problem will cause irreversible damage to the body. Problems caused by "medical" intervention, in this case.
If you go to the doctor with a simple greenstick fracture and this doctor suggests fixing it requires making it into a compound fracture, you're dealing with a charlatan, Get away as fast as you can. Real friends would help you escape that doctor's influence, not encourage you to follow the "doctor's" advice, even if it sounds like what you want to hear. That's what a doctor who suggests drug misuse and body mutilation as a remedy for misaligned feelings and biology is. A charlatan. Not on your side, but your enemy. Even if that is what you want to hear.
Most of the affected girls still act in completely "girlish" ways in the way they try to act more like they think boys would act, even while claiming offense at their (incorrect) pronouns not being respected. This phenomenon is a very female thing, even as they fight against being female.
It's not even so much that many of them want to be boys, they just don't want to be girls-- and especially don't want to be women. How has this happened? I have hypotheses relating to the blanket condemnation of "sexualizing" women, but that's just my suspicion-- I may be wrong.
Whatever caused it, it is what it is. How to help them? Not through the encouragement of drug misuse and deep "cutting" resulting in mutilation.
If a friend is suffering from anorexia, you don't cheer for every pound lost. A friend won't encourage someone suffering from "cutting" to continue to express themselves by putting knife to skin. And yet, "advocates" do encourage young girls to harm themselves if they "feel" they are "really" boys. I don't hate the victims, but I do hate these dangerous "advocates". They are sick.
Because no matter what drugs these girls are put on, or what mutilation they endure, every cell of their body will forever scream "Female!", causing them more problems. Problems only heightened by the drug misuse and mutilation they sought help to find. You don't fix a simple greenstick fracture by making it into a compound fracture.
This post will be called "hate" or "transphobia" by some people. That's as ridiculous as it is predictable.
If I hated them, I would tell them what they want to hear and encourage them to act on these feelings. Like their "advocates" do. That I'm willing to speak up in spite of the hate this kind of honest speech attracts shows the depth of my love and concern. I am not their enemy; their "advocates" are.