"Race and skin colour have nothing to do with success. It’s about culture."

You're joking, right? That is the most privileged statement I have read in a while.

You realise that until 1962 First Nations people had absolutely NO say in the running of the country, they weren't even allowed to vote, and it was in 1967 they were Igranted full citizen rights. It was not until 1984 that Aboriginal and Torres Strait Islander people were politically equal to other Australians under the Commonwealth Electoral Amendment Act 1983, so the migrants you mentioned that faced "difficulties" were at least recognised as humans with basic human rights like voting, they never had their children stolen out of their homes and sent to complete strangers (a policy that lasted until 1969), up to at least the 1940s Aboriginal men were still being captured and sent to circuses and zoos in Europe and North America, they were excluded from education policies - government schools actually had the right to refuse education to First Nations people until the 70s, again meaning the immigrants you mentioned could walk off a boat and in to a public school and be given an education that was not available to first nations people, that was government policy from 1902. Think about it. It's cultural, or it is a product of our treatment of them that has made us an international laughing stock every time we have the audacity to mention human rights abuses elsewhere?