The OP dances daintily around the real issue. Certainly some adolescent MtF is the result of autogynephilia. This can set on with staggering rapidity. Where I live, there are many ado AGPs and they are not shy. In many the 'change' took less than a month and in some, less than a week. Until we find out what actually triggers autogynephilia, we cannot formulate strategies to counter it, other than one-to-one counselling. There are not enough sceptical counsellors. (I am one.)
However, the OP rightly suggests that something else is going on and there is. It appears to be a form of autoandrophobia, the fear of being a man, or the hatred of the idea of being a man. This is evident from the statements of subjects with this condition. What the OP dpes not do, spectacularly, is even ask why this autoandrophobia exists. She does not point to decades of anti-masculine propaganda pushed out by Hollywood and the MSM. She does not mention the teachers deliberately punishing boys - for being boys. She does not discuss the literally billions of anti-masculine online comments, some of which have been rehearsed here, which basically say 'woman good, man bad'. This is only a tiny selection of the vast amount of anti-masculine hate-speak we live under - and mostly, promulgated through social media, conventional media and education.
No, not all men are rapists. No, not all men start wars, though they die in them. No, not all men are violent criminals. No, not all men are abusers. In fact, nearly all men are decent, kind, courteous and protective. Yet the opposite message is hammered out, day after day. And where does it come from? It comes from feminism and the relentless anti-masculine campaign its leaders have carried on for 50 years now.
If you want to save these boys, you have to destroy feminism. Otherwise, sacrifice them on the altar of a bitter, jealous, man-hating cult and then, please, stop complaining and trying to divert the blame. That's your choice and we shall know you by the decision you take.