What do you call an argument where you try to invalidate criticism of a narrative work (I'm not sure what the correct term is to describe it) by using fact or explanation from the narrative work itself? The narrative work is usually in the form of movie, comic, or book.
A sci-fi movie is criticized for being racist because every role is played by people of the same ethnicity. And then someone says that, "Well, it's not racist because it is told that there is only one race in the planet where the movie takes place."
Or, a very popular movie is being criticized for having a protagonist who supports extreme ideology. Then someone says, "Well, that's because he was brought up in a messed up family and neighborhood, and the movie is merely telling his story."
Or, let's say there's a war movie with two opposing country that resembles real world country. The movie is criticized because the characters from the "good" country vilify the "bad" country too much. Then someone says. "Although it resembles real world country, the corresponding country in this movie is like the evil version of the real world country, and because it doesn't represent the real world country, it is fictional. So, it's fine if the fictional country is vilified like that in the movie."