A question for Julie Bishop and Kevin Donnelly

I just marked one of my students down for using the word "Abo" in a class debate on the films Rabbit-Proof Fence and Australian Rules. Does that make me a Maoist, anti-American, left-wing, Trojan Horse brainwashing thug?

Me

My student

P.S. My justification for penalising the student was that the use of such a pejorative term was inappropriate in the context of a formal debate, and that it might distract or alienate the audience--something that public speakers (and debate participants in particular) should generally try to avoid.