I fail to see that you suffered anything more than a little discomfort.
[T]here is a "crucial difference" between government speech endorsing religion, which the Establishment Clause forbids, and private speech endorsing religion, which the Free Speech and Free Exercise Clauses protect. We think that secondary school students are mature enough and are likely to understand that a school does not endorse or support student speech that it merely permits on a nondiscriminatory basis .... The proposition that schools do not endorse everything they fail to censor is not complicated.
And that was before Alito and Roberts.
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.
And here is what it doesn't say:
'....except by school administrators at graduation ceremonies'.