Um..not sure I agree with this. The point about him being an Australian is that he has no stake in this game which is what CC was saying and which i understood - the fact that the NHS might be sold off might be interesting to someone from Mongolia and they may have an opinion but as it wont affect them it means that the weighting I would give to that opinion would go down or up depending on the circumstances.
As to this "you are not stating a fact as he is Australian which is the correct term to use as short or Nicknames can be deemed by some people as a insult. " I have family who are Aussies and I don't know anyone of them or any Australian that would think that was an insult. In fact my brother in law announced really clearly on the eve of my Sister's wedding to him that because she had become an Aussie that day, by ceremoney, "today there is one less Pom and tomorrow there will be one less (insert my family name)". If we are going to continue this fear of offence then we will be a poorer people, societally, culturally and linguistically.