This confirms my suspicion that all that anti-trans opposition was actually just barely concealed anti-AGP. Homosexual transsexuals are acceptable, trans men are barely ever mentioned, but AGPs are "the problem" and always will be.
Unrealistic goals - many like to believe that quitting or abstaining for some time from indulging AGP will make you "cured" - not AGP anymore at all! When that naturally fails, they see it as proof that repression doesn't work.
Lack of commitment - for many, repression is something temporary, external, forced upon them by others and not a personally chosen way of life. That makes breaking away from it desirable, who wouldn't want to live their life according to their true desires?
Lack of community - compared to amount of pro-trans spaces, there are barely any dedicated to repression. The very self-serving consensus in trans spaces is also that repression can't work and only delays the inevitable. People naturally follow the "herd".
Extremist tendencies - many failed repressors don't have the healthy framework to motivate repression and use religion, anti-trans ideology or they force themselves into the pursuit of masculinity which they don't truly want. Such external reasons can't win over the internal desire in long run, they'll only fuel it.
Celebration of failure and invisibility of success - when a repressor fails, it gets celebrated by trans people. People who detrans or have failed transition are never talked as much in comparison and used as argument against transitioning. And people who repress succesfully also don't tend to promote themselves or keep presence in related online spaces. So repression naturally gets associated with failure.