Your argument is confused and thereby weakened by asserting there is no physiological basis for gender dysphoria. There are many papers arguing about this, but it is obvious to those of us who experience it that gender dypshoria is not a simple system. It has not been studied enough, given how many people report problems in psychosocial development related to gender.
I think it rather nonsensical to argue that there is no such thing as gender dysphoria. History is replete with examples of people who risked death (not just ostricization, or criticism, but death) to express themselves thusly. People don’t risk death to wear a skirt unless there is something very significant and intrinsic driving them. The larger question is how gender dysphoria interacts with social mores.
Not many people have an issue with true transgenderism that I can see; and how could they? A true, full-blown transgendered individual transitions, obtains SRS, and then tries to melt into society as their new gender.
The larger question is the others, those whom their dysphoria is not extreme enough to seek the surgical solution; and then the other case of the Xdresser, who does NOT have any desire to change their sexual hardware, but engages more as a sexual fetish than a dysphoric-driven desire.
It’s complicated. And discussion of this topic is not helped by the fact that there are so many different subconditions contained under the general topic of “gender dysphoria” for which we have no real language to use when discussing the matter.