I shouldn't need to provide you a citation, it should be your prior; ideas spread through society through a variety of mechanisms, this is sociology 101. You should be providing me with a citation showing me how this is the one idea that isn't subject to diffusion.
... and it's fine if this is the case. It doesn't deny the existence of trans kids or people, but let's be realistic about the reward structure of peer groups and social media.
The diffusion of ideas through society is a foundational principle of sociology. It isn't a trans vs not trans thing, it's just the way society works. This doesn't deny the existence of trans kids, rather there are internal and external pressures (to both affirm or deny) their identity. Like I said, this is a complicated topic, and to act like every teenager who raises their hand and says they are trans is definitely trans is delusional.