Postwar repatriation aimed to solve statelessness because no accepted procedure existed

Evidence

This argument was always tempting because it left the system itself untouched; it has in a way survived the second World War whose peacemakers, convinced of the impracticability of minority treaties, began to “repatriate” nationalities as much as possible in an effort to unscramble “the belt of mixed populations.” … And this attempted large-scale repatriation was not the direct result of the catastrophic experiences following in the wake of the Minority Treaties; rather, it was hoped that such a step would finally solve a problem which, in the preceding decades, had assumed ever larger proportions and for which an internationally recognized and accepted procedure simply did not exist—the problem of the stateless people. — Hannah Arendt, The Origins of Totalitarianism, 682