According to the USDA, around 40% are undocumented: https://www.ers.usda.gov/data-products/chart-gallery/chart-detail?chartId=63466 https://www.ers.usda.gov/dat

According to the USDA, around 40% are undocumented: https://www.ers.usda.gov/data-products/chart-gallery/chart-detail?chartId=63466 https://www.ers.usda.gov/data-products/chart-gallery/chart-d... That seems like enough to have a measurable impact on food prices if they stop showing up? To be clear, not arguing for or against enforcement, just pointing out that the data seems to suggest this as a factor to be taken into consideration.