I know this could raise a few eyebrows... 
Just throwing it out there....
I actually don't have a problem with Asylum Seekers, and boat people.... Imagine the problems they must feel "at their home country". It would be truly awful.
(By the way, I wonder if is should be spelt "truely aweful".... six of one, half dozen of the other....)....
Idea;
I know this would encourage boat people a little.... But could we build a large community in the North West, where there seems to be land, and where there seems to be some immigration imprisonment... (???)... Could we assist with a multicultural transit centre, with industry and employment, and provide these desperate people with some hope... Could it be a tax free land for the Australians and Internationals who help to run it? Could it be a wildly large township..... Could it be "encapsulated / fenced" to appease the general Australian Public?....
Could we stress the importance of multiculturalism... With everyone needing to get along, with the knowledge/concept that your neighbor is culturally different to you, but they might still have similar ideals, such as providing for a better future for their children, partially though education....
Anyway.... Just throwing some wild thoughts out there....
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I wonder if this imaginary city would be bigger than Sydney or Melbourne within 10 years !! That might be the problem ??!!
Constructive thoughts, not destructive thoughts.... (please!)
I think this has been tried before - about 200 years ago.
Except it wasn't in the northwest, it was in the south.
They decided to call it 'Australia'
Your sub culture of radical and muslims asylum seekers etc has no place in a western world unless it is integrated into a fair system of diplomacy. Under the Muslim relegion this can not be achieved. They can not be integrated they are not willing to conform.
anyway i think is a good idea
We could round up all the Muslim women who are treated like **** remove them tell them they have freedom of speech in our country them drop a bomb on the rest
Its a good idea round up the outdated radical non conformists up in a remote community take out who is willing to conform then drop bombs and behead the rest......
example :
I say stop the boats and catch the others at the airports and send them home but in saying that I think we have to accept that the horse has already bolted.
Too much has been accepted in the name of political correctness now to be able to turn back the tide.
P.R it is interesting you mention Apartheid.
That was the incoming invaders (the white folk) mistreating / subjugating / not respecting the human rights of, the black folk.
We could very well end up with something similar if we let enough Muslims in....... there is already no-go areas for normal aussies and calls for sharia law.
I don't call that success, rather a bit fat warning sign.
Can you tell us how to avoid failure and have the beautiful mosaic?
Seems it was possible with many other cultures, but not Islam
By the way, for what it's worth...
I think anyone calling for an end to multiculturalism should immediately have their wish granted. They can be deported back to wherever they came from. Which means that anyone who isn't aboriginal gets a free ride to wherever... 
I'd be more concerned about Buddhists taking over
You should be more considerate of Jihad - do you know what it means.
Jihad (play /dʒɪˈhɑːd/; Arabic: جهاد ǧihād [dʒiˈhæːd]), an Islamic term, is a religious duty of Muslims. In Arabic, the word jihād translates as a noun meaning "struggle". Jihad appears 41 times in the Quran and frequently in the idiomatic expression "striving in the way of God (al-jihad fi sabil Allah)".[1][2][3] A person engaged in jihad is called a mujahid; the plural is mujahideen. Jihad is an important religious duty for Muslims. A minority among the Sunni scholars sometimes refer to this duty as the sixth pillar of Islam, though it occupies no such official status.[4] In Twelver Shi'a Islam, however, Jihad is one of the 10 Practices of the Religion.
Jihad in Islam, a term meaning "struggle"; used without any qualifiers it is generally understood in the West to refer to a "holy war" on behalf of Islam.
Muslims use the word in a religious context to refer to three types of struggles: an internal struggle to maintain faith, the struggle to improve the Muslim society, or the struggle to defend Islam.[5] The prominent British-American orientalist Bernard Lewis argues that in the hadiths and the classical manuals of Islamic law jihad has a military meaning in the large majority of cases.[6] In a commentary of the hadith Sahih Muslim, entitled al-Minhaj, the medieval Islamic scholar Yahya ibn Sharaf al-Nawawi stated that "one of the collective duties of the community as a whole (fard kifaya) is to lodge a valid protest, to solve problems of religion, to have knowledge of Divine Law, to command what is right and forbid wrong conduct".[7]
In western societies the term jihad is often translated as "holy war".
[9] Scholars of Islamic studies often stress that these words are not synonymous.[10] Muslim authors, in particular, tend to reject such an approach, stressing non-militant connotations of the word.[11][12]
) mumbo jumbo.... as far as I am concerned jihad=holy war! 
