What is your alternative explanation for why referrals have so sharply skewed towards girls who want to be boys, within the past decade or so?

It is doctors who first drew attention to this phenomenon. See for example Tavistock whistleblower David Bell.

Increasing social acceptibility and awareness is not mysterious to people who understand that many perceptions about gender are constructions that occur in social contexts.

Why do I owe you any specific "explanation" when the context here is that you are treating Shrier's pseudoscientific book that literally tells parents in the closing chapters that if their kid has a trans friend they should consider moving cities to get their child away from their trans friend as though we are supposed to take transphobic hate literature at face value.

Maybe a better step than me agreeing to do that is that instead you should take the entire corpus of medical literature on the subject, as well as the voices of trans people on the subject of trans people at face value first.

I have no interest in your JAQing off[1].

[1] https://en.wikipedia.org/wiki/Just_Asking_Questions

Maybe just think critically, without conspiracy about it for two seconds. With anything else, I'm sure you'd see the classic survivorship bias error you are making here.