It's fair enough really, it's very easy to go too far when deciding what is okay to say, when what's being said is unpalatable.
However, the young fella should be sent back to school for going on about 'ethnics' so someone can explain to him that that doesn't actually mean anything.
Woody Allen on the KKK
"I think we should fight to the death for their right to march, and then meet them with baseball bats"