A federal study of immigrants...some (poor, too often ignorant Hispanics) are FAR WORSE for America than others (the educated).
per the Dallas Federal Reserve study:
excerpt (released in 2006)--
Immigrant Assimilation: Why Worry?
A confluence of factors has generated concerns about the assimilation of low-skilled immigrants and their children.
First, immigration has reached record levels. The United States has surpassed the previous record inflows of immigrants at the turn of the 20th century, and the foreign-born now number more than 33 million. Twenty percent of schoolchildren today are the children of immigrants.
These children face a knowledge-based economy where the premium on education has been rising steadily. Human capital—more than ever before—drives wages and investment and determines future growth. U.S. workers also count on the next generations to pay for their retirement through programs such as Social Security and Medicare.
And lastly, while many first-generation immigrants are not citizens and are (in theory) ineligible for most welfare programs, their citizen children are eligible. As a result, from a fiscal perspective, the economic success (or failure) of immigrant children is even more important than that of their parents.
Worrying about immigrant assimilation boils down to worrying about Hispanic immigration. Non-Hispanic immigrants consistently outperform natives, even after three generations.
Meanwhile, Mexican/Hispanic immigrants make up the largest and least educated immigrant group. They still lag behind in education and wage outcomes even after 3 generations here.