Will blacks integrate into the Chinese nation?

Maybe. Black people are a kind of "race", which is classified by genetic constitution, while Chinese people are a kind of "nation", which is classified by nationality, so black people or white people can become a member of the Chinese nation and become Chinese because of their Chinese nationality, and they can also become Han Chinese or Uyghur Chinese because they regard Han culture or Uyghur culture as their own culture. So a black or white person can become a member of the Chinese nation and a Chinese because he has Chinese nationality, and a black person can become a Han or Uyghur because he considers Han or Uyghur culture as his own culture.