Look I agree with your main argument about people being varied and complicated. But there's a couple things there that I think should be called out:
some are like Noem's husband and it's just a sex thing where they feel humiliation but want that
That's not transitioning - he didn't transition. A cross dressing or sissification or bimbofication fetish is one thing and we could debate about misogyny vs kinkshaming or whatever, but whatever way you slice it its different than transitioning.
Perhaps I'm too caught up on this, but the fact is that people often conflate transitioning with sexual motivations and fetishes inaccurately and in bad faith, and its not accurate
but still (at least subconsciously) wants to be humialted and that's why she's republican
Similar to the above, I don't think there's any suggestion she 'wants to be humiliated' rather than acting in her self interest as a wealthy white woman. And yeah possibly there's internalised transphobia as well or something? But that's different than wanting to be humiliated, which to me implies some kind of sexual thing. Which again, needs to be entirely divorced from transitioning in the discourse