Something like affirming someone's insistence that they are of the other sex/don't belong to any sex/want to be called by a special name for something that is 99% usual (ie non-gender conforming) or whatever other 'authentic self' fascism is de rigeur at the time is not rescuing a child from clear and present danger. It is part of a drip effect that encourages the belief that sex and gender are optional, that being a man or a woman is meaningless, that the language should change to reflect this, that children of 11 (or younger) have the right to dictate to adults - even those in supposed authority, and so much more.
That is why this needs proper debate. It's not a simple thing like calling Sarah Sal, or Harry Hal, against parental preference.
It may be that it is a good thing. That children have the right to decide these things for themselves and that adults who refuse to help them are abusive. It may be that it is better for adults to do what they think is best, and say that childhood is not the time to get involved in these things. It may be that this is a fashion, or that there are more sinister motives responsible for the upsurge in the numbers of very young people deciding that they are 'in the wrong body'. Who knows?
It would be so nice to be able to debate those things calmly and without unpleasantness. I respect the views of many on here, whether I agree with them or not, and am very open to learning new things, but like most people, I react to twisting words, attempts at diversion and accusations of bullying.