Yeah the school is stupid. Students are gonna win this one.

If the school wants to ban this they either need to enforce a dress code that bans all messages on clothing or they're out of luck. They ban "vulgar or profane" T-shirt content, that's fine, what part of "Let's Go Brandon" is vulgar or profane?

If I was a student at that school I'd go wearing a "let's go Brandon" shirt too, I want in on that sweet sweet lawsuit money for the clear constitutional violation.