The problem isn't about being transgender, it's about being a closeted CD who thinks nothing of intruding in gay spaces that people have literally died to make safe. I know that sounds a bit dramatic, but that's just how it comes out of me sometimes. (my people do love their drama)
I was an out gay dude before, ...'the change', and I can tell you that closet cases definitely make me uncomfortable. Perhaps I'm just projecting, because I was once a closet queen myself, but the whole idea of hanging out with the queers in private but denouncing them in public has never sat right with me. Even when I was doing it.
I don't have a problem with gender benders or part-timers who are openly supportive of gay and/or transgender rights. I understand that people may feel more comfortable presenting as a man for work or whatever. People do not have to 'pick a side' when it comes to gender presentation, and people like me, and the average gay dude can spot the genuine article a mile away. You can be 'closeted' and still be an ally who likes to party on the DL.
My enmity is reserved for those who are openly NOT supportive and who may in fact even be openly hostile to my people (queers and dykes), yet still want to be accepted and protected in our safe spaces.
This forum is populated by CD's who will punch you in the face if you call them gay. That's not a person I want to let into my circle of naughty irreverent nutcases.