Arizona State University:

The story of agriculture in Arizona is a tale of the search for cheap and plentiful water and labor. The twentieth century irrigation projects sponsored by the federal government supplied the former; to a great degree, immigrants from Mexico supplied the latter. In 1867, the canals of the Hohokam were re-trenched and the first of many crops were harvested. Mexicans came to the area as workers to help build the canals, level land, clear mesquite, and harvest the first crops. With the completion of the Roosevelt Dam, the planting of cotton, and the advent of World War I, demands for cheap labor increased. Mexican workers were recruited to work in Arizona, beginning the long, difficult, and demanding relationship between Mexicans, Mexican Americans, Euro-Americans and agriculture in Arizona. Women and children migrated as well and many families worked together in the fields.
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Today, some Mexican Americans continue their work as farm laborers, but due to the mechanization and the technology involved in the harvesting of crops their numbers have dropped. Documented and undocumented immigrants, however, continue to work in the fields.
asu.edu

Ron Gould wouldn’t be where he is today without a lot of Federal money and generations of hard work from the people he’s afraid of.