This Halloween I'm going as a whinging student with no sense of humour.
Seriously, do those kids get offended if someone dresses as a stereotype. It's like they saw the suicide bomber one, and thought - hey, that's too racially specific, we can't complain about that without complaining about the ghetto costume, or the mexican on a donkey. I'm Scottish, should I be offended at Scrooge McDuck?, or anyone wearing a kilt, because I don't actually wear a kilt, and that's not who I am man - that's not what I'm about, so I choose to be offended. All of these kids are portraying their own stereotypes, by being miserible, politically correct douchebags. Way to drain all the fun out of halloween, I'm off to carve some non-racially-specific-gender-unknown pumpkins.
I would love to go and protest their protest, maybe black up and do some ironic 70's jive talkin. Would you like that students?, 70's black guy with a porn moustache doing kung-fu moves all in your face?
No kiddies, you don't want that! - And they are all correct, they aren't the people shown in their posters, those people look like they're enjoying themselves.