The question is why you make a big deal about this at all.
The problem with this kid wasn't that they were "Trans", they were "Gender Fluid". (And yes, "They/Them/Theirs" is the proper pronoun). It was that they committed sexual assault, just like 16,000 cisgender kids do on HS campuses.
Also, the whole outrage on the right is a little selective, isn't it?
The school founded by evangelist Jerry Falwell ignored reports of rape and threatened to punish accusers for breaking its moral code, say former students. An official who says he was fired for raising concerns calls it a “conspiracy of silence.”
www.propublica.org