Australia has been inundated by Boat People from Vietnam.
It has lead to the development of Xenophobia. Silly, when we tend to outclass them in every aspect - qualifications, experience etc.
Its called national protectiveness. I guess, they have to do it to protect the future generations of original Australians, or else its the immigrants that will be ruling Australia.
And the problem with South Asians, in my opinion is that they tend to bring corruption to the country they immigrate to....
I have read a study on this....