Just as a side point:
Oz is an immigrant nation, and the source of said immigrants has changed markedly over the years. English, Irish, Chinese, German, Serbian, Greek, Vietnamese, Afghan, etc.
We are certainly not an enlightened paradise when it comes to bigotry; a lot of the locals are xenophobic arseholes. But there does seem to be a repeated pattern with the integration of new immigrant communities.
The following is entirely made up of broad stereotypes, but I think there is some truth to it:
With each new group of immigrants, the first generation tend to cling to their culture and language a bit. They’re in a new and strange environment, and there is comfort in the familiar.
For entirely understandable reasons, they seek help from other people of similar background, and form tight-knit communities. Generally speaking, they keep their heads down and work on rebuilding their lives, while trying to ignore the ignorant and/or bigoted crap they get from their new neighbours.
The second generation kids get caught between cultures, and sometimes kick up a bit. As well as the personal psychological strain, they see the prejudice their parents faced, but have less tolerance for it. Peak conflict tends to focus on this generation, because they interact more with the established locals and fight back when challenged.
The third generation are just locals with interesting names and good food.
That initial period of semi-ghettoisation does seem to be a necessary stage, though. And to accelerate it, support rather than compulsion looks like the better bet.
