What reasons did the american party give in the 1840s to encourage immigration reform

Answer;

The American party, also known as the Know-Nothing Party, encouraged immigration reforms to prevent the arrival to the USA of Catholic Immigrants

Other reasons they gave to encourage the reforms include;

-Immigrants were stealing jobs from "true Americans"

-Catholic church opposed taxation to give funds to public schools. 

-Catholics were loyal to the Pope, instead of being loyal to the USA. 

-Most of the immigrants were poor peasants who caused the crime rates to grow.

the answer is )multiethnic