I know it is not fair for americans to be unemployed because we foreigns are taking your positions; but you guys don't know what it feels to live in a third world country.
You can read all you want about poverty and violence, you can get shocked by the news and movies that touches that kind of topics. But you will hardly ever experience what it feels to live in real poverty. You don't know how it feels when your brothers or children are dying of starvation.
So I kept studying for years, stuck in a country were you can get killed anytime... became a freelance and later I was brought to the US under a H-1B visa. And guess what... it saved my life and my family's.
I've realized America is the kind of country that loves to exploit and get as much as possible from other countries (third world ones generally), and when it comes to give back some of that... well, you find this kind of reactions.