The flood of immigrants began to alarm many native born Americans. Some feared job competition from foreigners. Others disliked the religion or politics of the newcomers. During the 1850's, the America Party, also called the Know-Nothing Party, demanded laws to reduce immigration and to make it harder for foreigners to become citizens. Although the part soon died out, it reflected the serious concerns of some Americans.
I had this class last year. A universalizing religion is a religion that attempts to appeal to all peoples regardless of location or culture. Have a good day :)