Mental health treatment is still a very complex, growing, evolving field that is far from maturity. Until recently, in fact, we thought that hammering a spike through the eye socket into the brain was cutting edge treatment for some disorders, even if many people died outright or were turned into zombies as a result. We've learned a lot since then, and when psychiatry attempts to treat a disorder, we have to proceed with caution if we're going to make permanent, life altering and potentially life shortening changes to people's bodies.
The medical field is full of humans who can be swayed by authoritative voices just like everyone else is. Case in point, the pandemic we just came through, during which the medical community was NOT in lockstep over the best ways to deal with it. The political powers, however, wanted a simple, one size fits all "treatment" that was easy to implement, could be forcibly applied to everyone, and that ultimately granted the government more power, and they got it. The voices that called for a more reasoned approach, for alternative treatments, for not necessarily vaccinating everyone immediately, were shouted down and marginalized, even though it turns out they were right in many regards and had valid reasons for their stance. Once something attains political power and attracts a lot of money, it becomes very, very difficult for professionals to go against the tide, even if they are correct and the tide is causing more damage than it's helping.
Now, the trans movement. Is anyone actually saying that we all of a sudden have hundreds of thousands or millions of children clamoring to become the opposite gender, just in the last 5 years? So many that it causes this emergency need for life-long (read expensive) hormone treatments and surgeries? Such an emergency that we have to kick parents out of the loop because they might object to it being done to their children? Or have these people been here all along, figured out how to cope with their feelings and lived successful lives without becoming the other gender? Now there's political power and lots of money to made from putting kids through expensive surgery and hormone treatments, so there are powers that be that have jumped on the trendy trans bandwagon who are now attempting to shout down and marginalize those who are saying, "Hold on, here, let's not go down that road so fast without first considering all the ramifications". We don't have long-term studies on the results. How do trans individuals feel 40 years after transitioning? Did it actually make them feel better long-term, or did they realize it was a big mistake long after it was too late to do anything about it?