Immigration and the Economy..!

http://www.aclu.org/immigrants-rights/immigrants-and-economy

I was researching immigration, and i came upon this article.  It has great facts about immigrants and our economy, they hit the nail on the coffin.  "Immigrants pay more than $90 billion in taxes every year and receive only $5 billion in welfare. Without their contributions to the public treasury, the economy would suffer enormous losses."  If immigrants are helping the economy, why do americans want them out? They also help out new business and spend their money on american goods, but yet people want immigrants out of this country for various reasons, blaming them on the "draining the economy and taking jobs away" is absurd and should be looked at by the ignorant people.