On what basis is japan considered a homogenous country?

Japanese often think of themselves as a homogeneous society, with a strong sense of group and national identity and little or no ethnic or racial diversity.

most are appointed by the president and confirmed by a vote in the senate. however, appeals court judges appoint federal bankruptcy judges, and district judges appoint federal magistrate judges. the qualifications for these positions vary depending on the preferences of the person reviewing nominees.

hope this , give me brainliest answer = )

1. i forgot 2. he was gay 3. they killed a lot of the population 6. they rode horses and had swords we have guns and tanks