I didn't. Trumps executive order is explicitly cisgenderist, but trans people are not a third gender.
You need to add that "gametes" stuff for it to invalidate gender transition. Like, even TERFs made this point only in the recent years. This is not to mean that the "2 genders" adage is trans-accepting, but it does not exclude trans people by itself, as it literally does with intersex and non-binary. It is the shared set of beliefs that makes it such the transphobic slogan, and before "gametes" it could be a number of other things - like gender essentialism.
People who say "we accept all genders, we let trans women into the women's toilet" are in fact third-gendering trans-people. This is IMHO problematic, and people with your or OPs record of curating trans-related journalism should be aware of it.
I agree with both the above. Sure I am nit picking, but for good reasons (I explain below). But you are mistaken in assuming I am "angry" at the author. I am just expressing the only noteworthy thought I had about this article. I upvoted the thing!
Well, normally I don't, in fact I recently explained that since biological sex is not a fixed binary it is absurd to assume that gender identity is.
This is a very well put together and comprehensive list, and I don't even think these terms are mutually exclusive. But I do make some conceptual distinction between (just an example) drag queens and trans women, I think it is more accurate to define "trans" in terms of gender identity not expression or performance. I would use "trans*" or "GNC" as an umbrella term, like in a future red book or style guide.
Since we can now use some shared terms, let me rephrase. 3rd-gendering is not just alienating to trans-binary people, I think it is literally dehumanizing to all GNC people. That's why I pointed it out.