If I did undergo that path when I wanted to, at which point would you consider me "becoming them"? At the inception of the thought? After some rumination? After making the decision? After first time taking meds? After undergoing surgery?
I don't consider it gatekeeping, rather prevention of making an irreversible choice while the frontal lobe is still far from knowing even what path it wants for itself for the rest of its life. I know that might be seen as unfair to a lot of people, but given the persistence with which gender affirmation is being pushed, I feel that cases like me are simply considered collateral damage. Really glad I didn't end up as such.