What caused a rise of nativism in the USA in the early 19 tenth century?

It impacted politics in the mid-19th century because of the large inflows of immigrants after 1845 from cultures that were different from the existing American culture.

Explanation:

I

what caused it was the reasons ranging from religious intolerance to a fear of losing there own jobs some Americans harbored strong hated toward the newcomers and they revived a trend called negativism