Islam is not just a religion, it's a way of life. A way that is 100% different from the culture we in the west enjoy.
Having watched news reports on this on Sky news, I have to say that I agree with the residents they interviewed, the regular Aussies welcomed people from all over the world, Brits, Thai's, South Americans, Chinese and other Europeans, these ethnics were more than willing to integrate with the Australians. Muslims however weren't hence the demonstrations