Rowman, just so you know, not all "people are willing to do anything to get here". Statistics show that there are now more Americans emigrating to Western European countries than vice versa.
In other words, there are fewer people these days who "proclaim America is the greatest land on Earth." Why is that do you think?
World opinion of America and Americans is not what it once was. For example, when my wife and I were visiting New Zealand a few years ago, I struck up a conversation with a retired New Zealander (AKA, Kiwi) who lived next door to the house where we were staying. Like so many Kiwis, he had done a lot of traveling all over the planet. He told me that the stupidest people he met anywhere in the world were in Houston. I asked him if he'd ever been to Oklahoma. He said he hadn't.