They (we I should say) are not ruining the American Economy. It HAS been proven. They come here because American companies have taken away their jobs in Mexico and other central and South American countries.  What is truly ruining the economy is the fact that the govt is spending $300 a DAY in Iraq. No money for education because illegal immigranta are here!?! there is no money because we are in debt and still spending money in this stupid idiotic occupation in the Middle East.