Literally the only thing that matters, the only thing that is real, is power dynamics / privilege. Anyone who is not unquestioningly promoting the true trans agenda is by definition a hateful bigoted transphobe, it really isn't complicated.
A TW who doesn't need validation as a literal woman is clearly not underprivileged in the way that a real trans person is, therefore their viewpoint is irrelevant, just like rich people, white people and cis people's viewpoints are irrelevant.