* Transgender author of fiction that includes trans characters, but for whom being trans is never the central theme
I see no ethical issue here. In real life, trans people are just people who exist in the context of life in a larger sense. Why shouldn't they be the same in literature?
* Non-passable crossdresser uses the two-spirits idea to be a psychic, involving much stagecraft
Sounds like carnival hokum; silly, but otherwise harmless.
* A band of crossdressers that never plays songs about crossdressing, but instead plays regular songs they like (covers or not), knowing the meaning of the song is altered slightly when it's delivered by a crossdressing band
Again, normal people doing a normal thing. Playing songs about crossdressing is not a job requirement. And I'm hard pressed to imagine what songs might have a different meaning when sung by crossdressers.
