Which of the following is true about the treatment of migrant workers from mexico? mexican workers were welcomed in the 1920s because of the abundance of factory jobs, and many obtained citizenship in the 1930s. mexican workers were refused entry in the 1920s due to strict immigration laws, but they were welcomed in the 1930s. mexican workers were offered agricultural jobs in the 1920s, but many were deported in the 1930s due to increased nativist sentiment. mexican workers were not legally allowed to enter the united states during the 1920s and 1930s due to immigration restrictions.