Ah, I’d missed that detail. I was on the fence about whether or not it was a trans allegory because it didn’t initially feel like there were as many similarities in her story to being trans as there was to homosexuality and being an undocumented immigrant but upon further consideration I have to agree. Though it does seem to me like it is also about those other groups I mentioned. I suppose it’s a bit of a catch-all (which worked great).
I think a lot of the species at least agree with the idea of a eugenics ban after seeing the records of how disastrous it was for Earth, regardless of their own struggles.