DeathzBlade, that little poem was born o a different era than what we have today. It no longer applies to the United States of America of the 21st century.
You want to live in work in the US then do so legally and learn the language. There is no other acceptable option. Yes, I do think that we need to enforce the law, and in fact make it harsher on those who do come in the country illegally. I also think we should alter the laws a bit to make it easier to come to the US legally.
Harsher laws for those who are illegal, but make it more friendly for those who wish to enter and become part of the American stew pot. Last of all we need to make sure the laws are enforced.