Ending illegal immigration benefits economy

According to the a study conducted by the SAT, the U.S. work force of 2030 would be less literate, less skilled and worse paid than the U.S. work force of 1990. This isn't because of an overall decline in US workforce, but more because of the growing illegal population. The author states that the incoming generations of Mexicans are just as likely to complete high school like their ancestors (the rate of completion isn't good), while the completion rate for high school of other immigrants has increased. Combine this with a growing Mexican population and it equals a less skilled and less literate workforce in 2030. The author believes stopping illegal immigration with laws like the recently passed Arizona law will reduce illegals by a significant amount.