Labor’s restriction case added a homogeneity argument to economics after the war

Evidence

Significantly, the A.F.L. urged a second reason for suspension, apart from economics. Immigration, it believed, had exceeded the nation’s capacity to unify and Americanize. This explicit appeal to national homogeneity had not graced official A.F.L. declarations before the war period. — John Higham, Strangers in the Land, 1838

Categorization

• XREF: Core to reader’s manufactured-threat question: organized labor, whose material grievance was always economic, newly invoked national unity — evidence the homogeneity frame is a construction that can be switched on, not primordial.