U.S. immigration and assimilation debates have roots in patterns of settlement that go back centuries
Colin Woodard writes: It is said that America is a nation of immigrants, and for a truism, that’s pretty accurate. But it’s also true that the United States hasn’t always been a nation of immigrants — or at least not all at the same time and not in all the same places. These days, the debate over immigration still revolves around age-old issues — whether immigrants can assimilate, whether they must assimilate, whether the nation is augmented by newcomers or…