PLEASE HELP!! How would you describe the relationship between the historical, economic, political, and/or cultural context of the United States (in a given time period) and the opinions held about immigration?

How did immigrants affect american economy and culture? fueled industrial growth, helped build railroads and worked in factories, mills, and mines, traditions became part of america, became active in labor unions and politics. in the 1840s and 1850s, German and Irish Catholics immigrated to US-?