In the very near future, medical professionals are going to stop doing these things, I guarantee it.
Maybe. The potential for political interference in medicine is an unknown quantity and we have seen how unrelenting conservatives can be in their never ending quest to force medicine to comply with their religious beliefs. What I will tell you is that in the slightly less near future, as prevailing medical knowledge filters into the social consciousness and generations of children grow up seeing and living alongside visible trans people, your position will become untenable.
It's probably within a decade that people look at blocking puberty like we do lobotomies.
Puberty blockers aren't just used to treat trans children, of course. They are also used to treat even younger children showing signs of early puberty. Early puberty, from a physical standpoint, is not a huge complication. There are a range of fairly small medical risks associated with it (but opponents of puberty blockers frequently claim all kinds of risks resulting from their use which, if real, would dwarf the risks posed by early puberty).
The main reason for treating children with early puberty is that it often causes children psychological distress. Children may become alienated from their peer groups and develop negative feelings about their own bodies. Girls who experience early puberty are particularly vulnerable, and face higher rates of substance abuse and mental illness. They also tend to engage in sexual behaviour younger, which may have associated risks.
So, is giving puberty blockers to a 7 year old girl who is miserable and being teased by her classmates because she is growing breasts akin to a lobotomy? If not, then what exactly is the difference between that and giving the same medication to an 11 year old child who is experiencing their puberty as distressing and dysphoric and needs more time to figure out who they are before their body decides for them. What is it about wanting to prevent these children from suffering through an unwanted physical process that is so akin to intentionally damaging a part of someone's brain and leaving them permanently disabled?
At the root of this is a very fundamental disagreement over the role of medicine. On one hand, there is the position that views medicine as the enforcer of societal conformity. As you so eloquently put it, "we" (the sane rational people who understand the supreme, cosmic importance of our penises and vaginas as the core determinants of our very being) have the right to decide what "should" be done about people who don't conform to our totally reasonable expectations.
This was, again, the mentality that saw huge numbers of children put under the knife to "correct" insignificant anomalies in their genitals for fear that they might imagine themselves to be anything other than perfect little boys and girls. Under this logic, using puberty blockers to treat early puberty is acceptable not because it makes children less miserable, but because it serves the overall goal of ensuring that bodies conform to the standard of normality. Using the same procedure to treat trans people is unacceptable because it removes bodies from the state of normality. At its core, this belief is a fierce and violent anti-individualism, it views the body not as a person but as a part of the greater social body which must be kept healthy and hygienic, and it is that social body that medicine exists to tend to, not the individual.
On the other hand, there is a mentality that views medicine as a tool to facilitate the quality of life of the individual, and which understands that, just as individuals vary, the metrics on which their condition may be qualified may also vary. Social non-conformity is not, in and of itself, illness, but becomes illness when it causes harm or distress. This perspective understands that giving children puberty blockers might separate them from what many might consider a "normal" life, and that this may carry psychological risks, but it also understands that living a "normal" life is not, in and of itself, more valuable than the alternative, and that the risks must be weighed against the benefit to the individual.
But that isn't most people's experience with depression, most people are better served by therapy and lifestyle changes than by anti-depressants.
So, I was (among many other things) at one point a child diagnosed with depression. I was given anti-depressants, which I didn't like but which definitely had an effect in stabilizing my mood and quite possibly saved my life, and psychodynamic therapy. Later, I disclosed this to another medical professional and was met with complete horror.
That was a huge turning point for me, because for the first time in my life I felt like someone saw what had happened for what it was. I remember self-harming every week because I didn't want to go, and I remember lying on that couch and saying things that I wasn't ready to hear myself say, I remember having thoughts and not being able to tell if they were my thoughts or my therapists', and yet at that point I was so fragile and so desperate to be well (and everyone around me was so desperate for me to be well) that I kept telling myself that it was all necessary, that I was getting better, until eventually I believed it. I have been afraid of going to therapy all my adult life, and I never understood why until that moment because somehow I had not considered that all my horrible memories weren't actually good and hadn't actually helped me.
There's a reason anti-depressants and therapy are typically prescribed together. Therapy is hard. I have learned that some forms of therapy are less hard and less invasive than others, but it's hard. It may sound very easy, if you have no serious problems, to go and talk to someone about whatever silly thoughts you've been having that week. I know people who do that because they have a lot of money. It is, however, extremely hard to reflexively take apart your own thoughts and memories and to try and figure out why it is that you want to die. It is
extremely hard if you are a child.
Therapy is not the "gentle" alternative to medication. Therapy, if you are doing it properly and engaging it, is what you need medication to get through.
Anyway, that's my little dose of ADHD oversharing for today.