The UN pushed on the policy of “non-discrimination” in the 1960s, it all coming together around 1965. The White Australia Policy look slightly longer to be murdered, but I have seen one MSM paper, dated 1945, when our boys were dying in the jungles of Asia, saying that the war indicates that the White Australia Policy will have to go, as if it caused the war. Ultimately all the politicians, Labor and Liberal, supported the abolition, or worked to undermine it. The link below is the official narrative, but once you read the American story below, you will be able to deconstruct its globalist Left narrative:
https://www.nma.gov.au/defining-moments/resources/end-of-white-australia-policy
Here is what they did to America:
https://www.amren.com/news/2020/10/how-a-1965-immigration-law-forever-changed-the-makeup-of-america/