Haven't experienced anything yet that makes me even think about it...one does need a permit to stage a demonstration, and the police are all over it. Our security services (ASIO) are keeping their eyes on the trouble makers, several of whom are under house arrest, many are in jail awaiting trial. Remember, out of 20 million Australians, we only have some 350,000 muslims, and the new laws in place for intending immigrants are very tight.
The government has been very quietly deporting non-citizens to their home countries...
Aside from the '4,000 Youth Group Members' that the Lebanese are threatening us with, who are mostly welfare recipient gang members dealing drugs and stealing cars, or harrassing locals (when they aren't being locked up for 45 years for taking part in pack-rapes...) we seem to have a good handle on things.
Their numbers are still too small for 'riots or advocating the violent overthrow of the government' - they have to make do with being a pain in the A$$ and insulting us at every opportunity. (We give back good or better than, we aren't at all PC.)
Over-all, the clerics and the loudmouths have made a laughing stock of themselves. I'll post a few more links to bring you up to date on the wonderful world of islam in Oz.
According to published sources, we have about 1.5 million muslims in the US out of a total population of about 300 million, or about 0.5%. This is actually a smaller proportion than the 1.75% you stated for Oz. However, they are plenty loud and plenty obnoxious when they are in groups!
You mean you "Skips" actually deport people?