I disagree. Our ancestors moved here and struck out for the prairie, forest, and plain. They hacked a living out of the hard virgin earth and created something great in the process. Today's immigrants head for the cities, where they stay, soaking up social services and cramming into tight quarters.
They lower the quality of life for city-dwellers.
Ummm....you don't know much about the history of US immigration, do you? If you think all the Italians, Greeks, and Eastern European Jews got here and immediately headed to a homestead in Montana, you're sadly mistaken.