The US and Australia have a similar culture of promoting multiculturalism and diminishing the less desirable historical facts.

Australia only became a nation independent of Britain in 1901, at which time one of the first policies passed was literally The white Australia policy. This was designed to keep the nation British. Post ww2 they relaxed the policy to allow European immigration, which retained the white Australia ideal. The immigration officer were able to separate the less desirable (nonwhite) applicants by administering a dictation test which if passed in English could be requested in any European language.

Chinese immigration to Australia had commenced long before the nation was even created, and boomed during the gold rush. They were victims of racial violence on the gold fields The Lambing flat riots in 1861 saw 250 Chinese miners were attacked by 2000 European miners. There were many people injured and they lost their possessions, but rather than being protected by the mostly nonexistent law enforcement, The Chinese Immigration Restriction and Regulation Act was introduced in the state of NSW in 1861. The other East Coast states followed suit in 1877 an 1886.

The white Australia policy still existed until 1966!
The denial of the very existence of the first nations who had been on this land over 65 000 years continued until a referendum in 1967 decided to grant changes to the constitution and include indigenous peoples as equal citizens. It wasn't until 1992 that the Mabo case over turned the doctrine of Terra Nullius.
Literally meaning Nobodys Land, The these laws denied the fact that Indigenous peoples had prior occupation and connection to the land. One man, Eddie ‘Koiki’ Mabo's 10 year fight went all the way to the high court. He didn't live to see it, but-

The 1992 Mabo decision led to the Native Title Act (1993) which created a framework that recognises Aboriginal and Torres Strait Islander peoples have rights to, and interests in, certain land because of their traditional laws and customs. It allows access to land for living, traditional purposes, hunting or fishing and/or to teach laws and customs on the land.

Exclusion, whether by means of walls or policies just set up a framework for prejudice and future challenges to reconciliation.
Chinese Australians have been here since before the nation was declared but are still told to go back to where they came from. The oldest nations of people in the world are here and still not properly acknowledged in the constitution. My own family are here because my ancestors who came from Southern Africa were in fact white. My children's Middle Eastern great grandmother, luckily for the family, was fluent in French when they arrived post ww2 and she was challenged with the European dictation test.

But history has taught us nothing. I have written before about our current immigration act and treatment of refugees in indefinite off shore detention. Shaping up to be our next big shameful historical regret.

Great post @streetstyle. I feel obliged to apologise for writing a book, but you tapped into something I am passionate about.

History is seldom glorious, but without recognising it, we cannot change.

I referenced the Australian national museum for accurate dates. www.nma.gov.au