I have read through a lot of questions regarding questions of a similar nature, but all of the questions I looked at involved fantasy worlds that were removed from the "real world." In my novel, I have five main characters, who are essentially kidnapped by scientists, given superpowers, and they basically try to prevent the head scientist from taking over the world. I have one character (only two main characters are present in novel one) who is of mixed race (African-American and caucasian).
The question is, do I need to address the issue of racism in the world during my novel?
Typically I would assume yes, but for my story, the characters really do not interact much with people outside of the five of them because they are kind of on the run since the government is sided with the scientists. Occasionally they will have small interactions with the rest of society, but it is normally either unimportant, with governmental figures, or with family members. Within the five of them, it wouldn't come up because there are other troubles that they have each been through that come up more than race, which really doesn't impact my characters. (Edit: This particular character is the son of an African-American woman {though she passed away when he was young} and a caucasian man who is the head of an organized crime or mafia-type group. He has been through a lot in his life and he's been kidnapped by many different groups trying to get to his father. Just thought I should specify this)
Thank you for any help you can provide!!