How did receiving societies react to the new presence of foreign migrants?

Receiving nations and societies sometimes welcomed new migrants from foreign nations. However, sometimes racial and ethnic prejudices made receiving peoples less likely to embrace these migrants. In Russia, anti-Semitic pogroms, or systematic attacks on Jews, often terrorized Jews, some of whom then migrated to the United States, where religious freedom was practiced. The Chinese Exclusion Act and the White Australia Policy both were ways these nations attempted to regulate the large amount of immigrants across borders.