I think it's a joke
The setup makes us assume no nudes are being exchanged.
We expect that the transphobe is warning the writer that one of the people receiving nudes is trans. We then expect the reveal to be that the write is trans or something along those lines. It was difficult for me to follow too.
The punchline is that nudes were indeed being exchanged. The transphobe was just a subversion.
I stand with reputable journalists and will be voting Joe Biden for president