Original sentence: Because Japanese citizenship was based on the nationality of the parent rather than on the place of birth, subsequent generations were not automatically Japanese and had to be naturalized to claim citizenship, despite being born and educated in Japan and speaking only Japanese, as was the case with many Chinese and Koreans in Japan
Edited sentence: Because Japanese citizenship was based on the nationality of the parent rather than on the place of birth, subsequent generations were not automatically Japanese and had to be naturalized to claim citizenship, despite being born and educated in Japan and speaking only Japanese, as was the case with most Koreans in Japan.If Japanese society is reluctant to readmit returnees, it is even less willing to accept as full members of society those people who are not ethnic Japanese