I’m sure I’ve read others saying this, but the metaphor of the Trill-as-trans in the first episode we see one (The Host) isn’t just to do with the ability to change bodies and contain the memories of past lives/genders, but also in Beverly’s original anger that she claims that Odan lied to her/that she doesn’t know who Odan is, because Odan never told her about being a symbiont.
To which Odan replies two things - one, that there was no obligation to tell her, because to Trill this is natural (implying Beverly brings her own presumptions of normativity into a relationship that she needs to challenge)
“It never occurred to me, this is what I am. Did you ever tell me that you were a single being? Of course not, it was normal to you.”
the second, is that this is still Odan: “You must understand, whoever I seem to be, I am Odan, who loved you. That has not changed. I still love you.”
The narrative of a trans person “replacing” the person before is quite a common bit of prejudice/fear and is quite interesting in the context of the Trill, especially considering the later ret-con narratives around re-association + the more uncomfortable “Worf and Julian are still obsessed with Jadzia through Ezri” story
And I think even with the complication of later story it’s fascinating, because it takes away the idea of monolith - Ezri maintains that while she is Dax, she is not Jadzia (which, of course, is also very trans of her!!!!!! + of course there is Jadzia taking on Curzon’s oath, maintaining a link between these two lives), while Odan focuses only on the “Odan” part. Some trans people do want to “excise” our past selves to some extent or another, some are perfectly chill about our pasts, for most of us it’s more complicated than either of these, but I think for all of us that becomes a choice
and none of this takes away from this initial conversation in my opinion. It adds to it. People are complex. So is life. So is love. (And even before we go to space, we need to challenge what our preconceptions of these can look like)