Some say that U.S. businesses and U.S. consumers want low cost illegal alien labor. But I reflect on the Industrial Revolution, it began in England, and flourished in the U.S. Why? Because England had no shortage of labor, and the labor guilds fought mechanization tooth and nail based on the idea that it would drive them out of their jobs (which it would, while simultaneously creating more jobs). But in the labor starved U.S. the idea took off. Having a machine that would do the work of ten laborers was a bargain if you did not have ten laborers to start.
Illegal aliens provide cheap labor. But what invention are we not getting because of the mistaken idea that illegal alien labor is saving us money? A machine that costs $1.00 per labor hour saves more money than an illegal alien at $3 per labor hour. Plus the machine never goes to the hospital without paying passing the burden on to others, never collects welfare, never commits any crime, and never demands that it be given rights to which it is not entitled.