IMO, Australia has a win/win from foreign students: -they pay fortheir Aussie education -they then take up potentially middle class job roles (EG: Medicine , Economics, Business Studies etc)
I visited a neighbour in my local holpital last week and I can say that over 50% of the medical staff were immigrants; predominantly Indian & Chinese.
My friend inhouse doctor is from India , his specialist from Iran and his nurse is from the Phillipines.