Why is there racism in Australia?

Answer: In the 1970's, legislation was passed to make racial vilification illegal. This included any term that may describe somebody of a certain ethnic origin in a derisive manner. This has evolved to the point where people cannot be described, without the greatest care being taken, to avoid any reference to racial origin, racial appearance, skin colour, religion, etc.

This has now devolved to the point where any non-Anglo/Celtic descended person who is disappointed by the outcome of a job interview, etc, has only has to suggest the Word "racism" and they are made instantly and overjoyously happy by a reversal of the decision.

Answer: Probably because there are many in Australia who'd rather ignore the persisting racial issues, and inevitably things grow to a point where it can no longer be ignored. Also, racists are not exclusive to any one country, so it's not surprising their ignorance and hatred would be spread throughout Australia as well as other countries of the world.