If we lose the workers who are here illegally, it's hard to see how they'll be replaced, because Americans are reluctant to take these jobs, particularly the ones harvesting crops. There's a lot of evidence for this, both anecdotal and statistical, including a particularly compelling case study done in North Carolina in 2011. That year, 489,000 people were unemployed statewide. The North Carolina Growers Association listed 6,500 available jobs. Just 268 of those 489,000 North Carolinians applied, and 245 were hired. On the first day of work, 163 showed up, and a grand total of seven finished the season. Of the mostly Mexican workers who took the rest of the jobs, 90 percent made it through to the end.