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

Hi!

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

Among the reasons they gave to encourage immigration reform were the following:

-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.