Yes, well, if you want to judge Australia on the maniacs in the lunatic left fringe, you are not going to get an accurate picture of the country.
The people associated with those protests represent less than 1% of the country - a lot less than 1% of the country in fact. Yes, they are very noisy, very vocal and quite organised - but they do not even come close to representing the mainstream Australian viewpoint.
I am not judging anyone, i loved my experience in australia and have friends that are australian. i got my car broken into in sicily but i dont consider all italians thieves, it is just my experience.