It seems like the theme the author wants to explore during this trip is guilt by race (and, more broadly, the umbrella concept of guilt by association).
Miss Alyba's current argument is:
- Person A / Group A committed a horrible action K.
- Person A / Group A belongs to Race X / Group X.
- Therefore, Race X / Group X is evil and should also be punished, even if its members were not involved in action K.
Example using real life:
- Hitler was involved in committing the Holocaust.
- Hitler was German (actually Austrian-born).
- Therefore, Germans are evil and should also be punished, even if they are children born today.
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Clearly, this is a terrible policy, and it implicates Miss Alyba herself as a Hyron. By that logic, she is also implicated in the genocide of the Haupi.
Miss Alyba's logic is also used by the Mun villagers against the San child, Takeru. The Mun may have understandable reasons given their treatment in the past, but why should a child who was only recently born be implicated? This type of unjustifiable treatment does not produce the outcomes people want. Rather, it is likely to create the very hatred that leads to further unjustifiable treatment, exacerbating the situation and creating a cycle of hatred that echoes through time and space.