Banned Halloween Costumes

Should this school ban halloween costumes? I'm not so sure, but they have every right too. That boy must have no respect for others at all. He was 17 years of age, he should've known better than that. Especially, considering all the Jews in that area. Honestly though, i don't think that every kid in that school should have to be punished for one guys decision. He should've paid his price for disrespecting others and the whole ordeal should have been over with. It isn't up to me though. So from the story, the costumes are banned this year.