I'd like to talk about N'Jobu. I found him to be an interesting encapsulation of many immigrants who come to the United States, settle and have children here. I found his ennui and his elevation of his home country to be very indicative of how people tend to view their own home countries. During sentimental times, blind to the realities of their own culture, they tell their sons and daughters who are raised here about the beauty and majesty of their homeland. The wonderful cultures that is just not replicated here. They do it out of a sense of love and wanting to impart their history to their children. Their kids grow up here, a mix of American Culture but still marked (maybe forever) by their own history. Killmonger had no home, no home country really, he is an outsider to all Wakandans, but also knows in his heart that he doesn't belong in America either. When N'Jobu encounters him in the spirit realm, and tells Killmonger "They will say you are lost." From his perspective, simply being raised outside of Wakanda, he already knows how they will react to him when they see him. He's right. Killmonger responds by saying maybe it is the Wakandans who are lost, and N'Jobu cries, understanding that the rift won't be repaired, and his son will never look upon his home the way he himself did. This small part of the film, this exchange reflects what so many immigrants go through with their own children, who cannot relate to their past home. And in turn the children may lack the ability to look upon their father or mother's birthplace with the same love.
Anyway, this is just one relationship in the film.