What idea based on the eugenics movement reinforced anti-immigration bias in the United States? Lighter skin and hair color that were predominant in northern Europeans predisposed them to physical
weakness, and therefore, they were less desirable as immigrants to the United States.
Catholicism compelled immigrants of that faith to show allegiance to the Pope rather than to the U. S.
government.
Immigrants had weak minds influenced by radicalism and Bolshevism.
Heredity determined almost all a person's capacities, and genetic inferiority predisposed certain races or
ethnic groups to crime and poverty.