The Aborigines develop a unified civilization which is sufficiently advanced to make outside domination of it difficult enough that stray travelers cannot easily take it over, but enough that it is tantalizingly within reach for a powerful effort. Europe ultimately shows up with minimal butterflies but the situation ultimately results similar to China - nobody wants control of this vast land to fall under the control of another empire. Within Europe, the ideas of "scientific" racism and the like not only do not die, but continue to develop and grow stronger. In time, an agreement is reached between the powers which carves them up on an equal basis, keeping Australia unified but establishing international control over the continent. Ultimately, as the Australians are obviously not "people" as the Europeans see them, this is ultimately classified as a nature reserve, and is viewed as an excellent example of the protection of primitive sub-species which have not attained the civilizational level of the West and which is instead under the enlightened and benevolent administration of the "civilized" race.
Australian "cultural customs" are carefully guarded by the Europeans, as although some of the most extreme and radical European liberals (the more unscientific among them at least, who still stick to long-disproven ideas of racial equality) insist that it is perhaps possible that one day under the guiding hand of the West it may be possible that the Australians will be ready for civilization, this must be carefully brought to them, and so perhaps in 300-400 years they will be capable of some independent development. Certainly factories, advanced education, and non-Western commerce must be restricted to the greatest possible degree, to protect the local inhabitants from the strenuous conditions of the modern world. The vast majority in the West laugh at this nonsense, as the Australians are obviously inherently mired in backwardness and by dint of their racial inferiority should submit gratefully to the valiant efforts of the Australian International Indigenous Protective Authority which does such excellent work in liberating the poor Australians from themselves and bringing them the fruits of European civilization, something they can never on their own reproduce. The British Empire in particular is eager to promote this model of colonial development to their French counterparts who have foolishly adopted limited assimilation policies within their own colonies, routinely boasting of parallels within their administrative regions - which liberal opinion in America is highly enthusiastic about.
Some of the most ardent proponents of the system, citing the most recent scientific papers, argue that as a nature reserve, the logical conclusion is that hunting should be allowed upon the protected species to keep down the population. However, so far such a proposal remains under discussion and various economic firms with ties in the Australian market have expressed their disapproval. As reliable scientific evidence continues to mount which conclusively demonstrates the inferiority of all other races except for the Caucasian race however, it is no doubt inevitable that in time hunting will be legalized upon the native creatures of Australia, just as the Belgian Congo has recently done to much international interest.
(this is mostly sarcasm just to make sure I don't get banned)
