I can think of 4; two npcs and two possible companions. How many did you find?
It was really the way the best companions seemed to be homosixual, the most readily visible characters, compared to the rest. It just made it feel like they were filling a quota.
Still, I felt safer with Arcade Gannon than I did with the scarily heterosixual Cass. There was always the nagging feeling that she might get drunk and do unspeakable things to me with a whiskey bottle.
No, but TES doesn't have world religions, they have the Nine Divines. They're pretty down with the whole sixuality thing, there's absolutely no justification for thinking it's unnatural in a world created by beings that practiced it themselves!
Tribunal don't like it much though. The Dunmer themselves... well that depends on whether you're a Fed or not.
As for the beings that actually
comprise the Tribunal, anything with a pulse will do.