When I think about it, those four gendered Andorians just probably wouldn't be diverse enough OR inclusive enough to meet liberals approval:
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The Andorian and Aenar species are unusual in that there are four distinct Andorian and Aenar sexes, and a union between all four sexes, an act known as the shelthreth, is required for procreation.
In the primary Andorian language, known as Andorii, the distinctions are as follows:
zhen - This sex roughly corresponds to female, and is the sex of the Andorian who will carry the zygote to term.
shen - This sex also roughly corresponds to female and is where all Andorian life originates. Although the zhen carries the infant, the child begins as gametes from the shen.
chan - This sex roughly corresponds to male.
thaan - This sex also roughly corresponds to male.
Reproductive process
The gametes of each "male" sex contain one quarter of the number of chromosomes necessary to produce offspring. During the conception of an Andorian child, the thaan fertilizes a shen's egg with his gamete. The chan then also fertilizes the egg. This produces a fertilized egg that develops into a zygote. The shen then transfers the zygote to the zhen's pouch, where it develops into an embryo. The Andorian fetus is incubated and nourished to term in the zhen's pouch. The zhen does not contribute genetically to offspring.
Two of the sexes, thaan and chan are approximately masculine, and the other two genders, zhen and shen, are approximately feminine. Andorians and Aenar accept the terms "male" and "female", and the pronouns "she/her" and "he/him", while dealing with binary-gendered species. (DS9 novel: Avatar)
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In summery, my guess is even the Andorians decide a Trans-Chan has mental problems and needs therapy. No Thaans in a Chan restroom!