You mean multi racial where groups segregate themselves and form their own hiarchy of social status. "Multiculturalism" is just another word for lack of culture.Cultures derived from countries that hold true to their conservative beliefs.
In the Italian novel
Il Gattopardo (The Leopard) by Giuseppe Tomasi di Lampedusa, we see plus ça change, plus c'est la même chose.
In the same way, we maintain our conservative culture by inviting people from all over the world, from different cultures, to join us. The result is these different cultures cancel each other out leaving the conservative culture of Oz.
The conservative culture of Oz was formed in the 100 years of aristocratic peace in Britain prior to the settlement of Oz in 1788.
So Oz has inherited conservative aristocratic values such as love of the outdoors, brutality in sport and manners, and a jealous egalitarianism. So we love the outdoors in a beautiful climate, we are formally informal, and we make a sport of cutting down tall poppies.
Britain maintained an aristocratic peace for 100 years prior to settlement of Oz by a policy of divide and rule on the Continent of Europe. And so we maintain the same aristocratic principle of divide and rule in multiculturalism over a multitude of competing cultures.
Do read
The Leopard (Il Gattopardo) by clicking on
ftp://121.17.126.74/data1/ts01/english/novel/batch001/20100511205517895.pdf .
It will be good for your soul.