One major effect of nativism in the United States in the 1920s was the implementation of strict immigration laws such as the Emergency Quota Act of 1921 and the Immigration Act of 1924, which restricted the number of immigrants allowed into the United States and favored immigrants from Western and Northern Europe. This led to a significant decrease in immigration from non-European countries and an increase in anti-immigrant sentiment among Americans. Additionally, nativism led to the rise of the Ku Klux Klan, which targeted not only African Americans but also immigrants, Catholics, Jews, and other minority groups.
