This is not only because the Korean Government has restrictions in which property or personal talents must meet their needs in order to receive citizenship. Even more important is that once assimilated they would have to abandon their original nationality.
這不止是因為韓國政府對入籍有財產、人才是否符合需求的限制，更重要的是，一旦歸化就必須放棄原有國籍。