because noticing the kind of trans women here who are "t4t" and date other trans women, they act like any other nerdy straight man does and it becomes impossible to see them as anything else
look at kassandra of ellaphae, the biggest agp straight male caricature of all time, absolutely zero female coded behavior just prototypical socially awkward in-his-own-head autistic straight male behavior
to reiterate:
t4t transbians are straight men who date other straight men