"The states and cities with large immigrant labor pools are the prosperous ones"
I didn't notice Los Angeles or Miami as being at the top of the list in terms of "prosperity" or job creation. Try cities like Atlanta, Charlotte, or Dallas/Fort Worth.
Major employers have been leaving Los Angeles County and Miami/Dade County as quickly as they can. How many corporate headquarters are left in Los Angeles? Not many.
Excerpts from Why Immigrants In Los Angeles (AND THEIR U.S.-BORN CHILDREN) Can't Read
September 25, 2004
A new study by the United Way of Los Angeles finds that 53 percent of the city's adult population — 3.8 million people — are functionally illiterate. [United Way, Literacy@Work: The L.A. Workforce Literacy Project, September 2004.]
snip
The percentage soars to 84 percent in heavily Hispanic south L.A., dropping to 44 percent in the greater San Fernando Valley.
snip
The distortion of the L.A. economy is sobering. Employers complain that they can't find workers for high-skilled jobs, but the low wage, low-skill economy is booming. The county employment forecast shows that 282,000 new jobs in the $16,000 to $26,000 pay range will be created by 2008. These jobs include cashiers, dishwashers, security guards, and other occupations requiring only brief on-the-job-training and limited language skills.
Wages for all of these unskilled positions have declined in L.A. County for the past 15 years — exactly what you would expect in a workforce inundated by functionally illiterate immigrants.