I am curious...
If a different student had worn a "gender is not a binary" shirt, would that have been viewed as "disruptive"?
While the shirt the student was wearing in this case certainly had the propensity to be disruptive (that's often the point of wearing a provocative message on a shirt), I do wonder if these rules aren't being applied equally.
As John Locke expressed:
justice means being subject only to rules that apply equally to everyone, not to arbitrary will
So while I can understand why the SCOTUS didn't intervene in this one (because by the letter of the rules, they had no reason to), it does raise broader questions.
Example:
if a person of color got arrested for a drug charge, thereby on paper, violating the law, and was a in a jurisdiction where the cops and prosecutors had been letting all the white people off the hook for the exact same charge. That also wouldn't be a case where the SCOTUS would intervene, because according to the letter of the law, a person violated the rules, was arrested for it, and sentenced, so legally speaking, nothing wrong happened if everything was done by the book. (what is the SCOTUS gonna do? Tell them they have to go back and prosecute all of the people they let off the hook in the interest of fairness?)
However, there would be a valid unfairness complaint to be made none the less.
The court declining this particular case (they decline >90% of cases since there's an exceptionally high bar to have one's case heard in the highest court in the land) doesn't negate the possibility that there was some viewpoint discrimination happening...which absolutely is a first amendment issue with some previous court precedent.
en.wikipedia.org
Hence the constitutional term "The Tinker Test"
Also a case where school administrators tried to ban students from wearing particular garments to protest the Vietnam war.
In a 7-2 ruling:
The Court held that for school officials to justify censoring speech, they "must be able to show that [their] action was caused by something more than a mere desire to avoid the discomfort and unpleasantness that always accompany an unpopular viewpoint"