x183 you are persistent. I was not talking about the airline industry (I should have been clear about that). There are plenty of private companies, higher education and government entities who hired and still hire a lot of foreigners for their expertise.
That's where the H1B visa (among others) comes from. It's a visa for individuals with an expertise in fields like medicine, physical sciences, education,... Look at the private companies and higher education who use extensively that visa and you will see names like Harvard, Yale, Stanford, Microsoft, Oracle,...
Arabs are using the same concept but are being way more aggressive. They are offering a good $$$, house, sometimes cars, health care, education for the kids, you name it. There are not a lot of Americans but there are sure plenty of Europeans, Australians, Asians and Indians pouring in. Sure, it is not for everyone. It's a different lifestyle and it's far from what we are familiar. But a lot of people are taking a shot at it and it might pay off at the end.