No prom? what gives?

I just read an article at AP/Facebook, where the prom at a Jackson. Mississipi high school has been cancelled. one lesbian student wants to bring her girlfriend to the prom. the lesbian girl wants to wear a tuxedo to the prom, but, the school board states it violates the school dress code and the prom was cancelled. girl contacts ACLU and a lawsuit is filed. i see nothing wrong with this situation, do you agree?