Why is Australia a racist country?
One thing to remember about Australia... it is big. Really, really big. If you consider the difference between Welshmen, Englishmen, the French and Italians... well those four countries could easily fit within one of the smaller Australian states!
The majority of Australians live in cities on the east coast, Melbourne, Sydney, Brisbane.. and those are multicultural metropolises with large sub populations of Chinese, Vietnamese, Italians, Greeks, Germans and many more.. when I was growing up in the 1970s there definitely was racism in the big cities, just as there was homophobia and other intolerances.. but times have changed.
However in rural settings there is definitely still a lot of racism. It is not directed at foreigners and if you're visiting from foreign nations you should have little to worry about, regardless the colour of your skin or your beliefs. Rural Australian racism is focused almost entirely on our native Australian people. It is difficult to answer your question (why??) without coming across as a racist myself. In northern country Australia, particularly Queensland and the Northern Territory there are many aboriginal communities who keep pretty much to themselves, living their tribal lives and doing their tribal things, governing themselves. Most if not all of these communities are ‘dry', they do not tolerate alcohol. So a small percentage of their populations, usually the youth, will occasionally go in to town for a few drinks. And get absolutely plastered. And sometimes misbehave. They will then go back to their communities and live their quiet lives but the whites in the area don't see that. They only see the drunken misbehaviour. I hope this helps.