I hope you're not suggesting that Australia is getting low-quality immigrants. Unlike the US, Australia has a points-based immigration system where you have to meet specific, standardized criteria, which IMO is more objective than the US process. I don't know what guidance State Department staffers follow when determining who gets a visa, but the process is more opaque, and I suspect more subjective.
edit: I think the "quality" argument is overrated. Not all immigrants do ground-breaking research or start billion-dollar companies. When it comes to economic activity, quantity has a quality of its own (apologies to J. Stalin). A city/state/country with the economic activity of an extra 20% population of mediocre, healthy, tax-paying, car-buying, mortgage-paying, burger-eating blue and white-collar immigrants is better off than one without.
> I don't know what guidance State Department staffers follow when determining who gets a visa, but the process is more opaque, and I suspect more subjective.
Except for categories where there's an extremely high burden of proof for extraordinary abilities, it's simply someone's ability to get a job no American is qualified to take (and be so in demand that it commands a salary in the top percentiles for the profession).
> ... it's simply someone's ability to get a job no American is qualified to take.
Not exactly, its someone's ability to get a job that their employer cannot find a more qualified candidate after advertising the job in the local newspaper for 6 months including at least two separate Sundays.
edit: I think the "quality" argument is overrated. Not all immigrants do ground-breaking research or start billion-dollar companies. When it comes to economic activity, quantity has a quality of its own (apologies to J. Stalin). A city/state/country with the economic activity of an extra 20% population of mediocre, healthy, tax-paying, car-buying, mortgage-paying, burger-eating blue and white-collar immigrants is better off than one without.