There is a Long History of immigration to America. How come there is not a Long History of immigration to any other Country on Earth?

http://www.infoplease.com/us/immigration/legislation-timeline.html

Even JFK thought maybe we have enough immigrants and lets take a Time Out...

https://www.immigrationdirect.com/ellis-island.jsp

A Time Out on immigrants is nothing new in the History of the usa

http://www.history.com/topics/u-s-immigration-before-1965

I'm just hoping that Amanda & her family will be able to immigrate at some point in time...