Don't want to come across as challenging, but believe me, it's just as hard settling in the UK too if you are an immigrant. I can tell you because I was one- despite earning top grades at at a specialist medical school course in a prestigious Italian University my qualifications and experience were not recognised and I was holding a senior research role but with downgraded title and junior pay in Cambridge
Oh- I also had a Russian friend from Moscow who had an MBA but only managed to scrape a junior sales job in Oxford... I will just leave it as that shall I
Sorry for the rant, Australia is not more unfair than than the UK, that was my point.