Other respondents have argued that Australians are not overly patriotic compared to Americans. They are dismissing patriotism as the preserve of bogans. However 20 years ago, bogans did not express patriotism any more overtly than the elite; and wrapping yourself in the flag, particularly during a race riot like the 2005 Cronulla riots, would have been unthinkable. (60 years ago of course patriotism was expressed in terms of the British Empire.)
The Xenophobe’s Guide to Aussies published 20 years ago summarised Australian patriotism as:
Australians already know they live in the best country on Earth and they don’t particularly feel the need to tell anyone about it.
What has changed in the interim is a combination of fear of globalization and reactionary politicking by John Howard. Howard is gone, but as the popularity of the monarchy and pilgrimages to Gallipoli attest (complete with youths wrapping themselves in the flag at dawn), the effects endure. Aussie patriotism is much louder than it used to be.