America is undergoing a demographic transformation whose cultural and political consequences receive far less scrutiny than their importance demands. The issue extends beyond how many people enter. It concerns the profound change in where they come from, the institutions that formed them and the convictions they bring into American public life. A country can change its population without seriously considering how it might change its character.
For generations, Europe supplied the great majority of America’s immigrants. The composition has since been reversed. Census data show that Europeans constituted 61.7 percent of the foreign-born population in 1970. By 2024, their share was 9.7 percent. Latin America accounted for 51.4 percent, Asia 30.8 percent, and Africa 5.9 percent. These figures describe the immigrant population, not the ancestry of all Americans. They nevertheless establish the magnitude of the change.
The change in origins accompanies a change in scale. The 2025 American Community Survey places the foreign-born share of the population at 14.7 percent. In 2024 it reached 14.8 percent, matching the historical peak of 1890; in 1970 it was 4.7 percent. The percentage alone is therefore not unprecedented. The contemporary combination of scale, origins, and cultural variety creates a different challenge from the earlier European immigration era.
This transformation did not begin yesterday. The Census Bureau traces the shift partly to the 1965 abandonment of national-origin quotas in favor of family reunification, skills, and refugee admissions. Acknowledging that history need not imply restoring discriminatory quotas. It requires asking what obligations followed from the decision to admit people from increasingly disparate societies. Who was responsible for ensuring that the newcomers and their descendants acquired a common constitutional understanding?
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