Asian immigration to Australia was almost totally banned from around 1900 until the 1960s (the ‘White Australia Policy’). A small Chinese community did exist (mostly descended from gold miners in the mid 19th century), but it wasn’t until the late 1970s when boat people from Vietnam and other places started arriving that we got many more Asian people.
Springvale started to become an Asian hub around then, and the locals are a mix of second or even third generation Asian-Australians, and newer arrivals.
Ah yeah, we got our share of boat people, too in my area (metro area, Minnesota). Have more Hmong and Somalians than any other city-state.
The Asian folk that have been here a long time (Chinese, Korean, Japanese have assimilated really well. The Hmong are still learning and Somalians seem to have little, if any, interest in joining the melting pot.
And that’s not counting the illegals from south of the border.