Operation Bounce House argues that group allegiance is deeply ingrained in human nature; although this kind of loyalty can have positive effects for the in-group, it can also lead to terrible consequences for any out-groups, up to extreme situations like colonization and genocide. The novel is pessimistic, suggesting that chauvinism is inevitable and that the only potential solutions are to eliminate most of humanity or isolate different groups from one another entirely.

New Sonoran society is used to illustrate the positive effects of in-group identity. Although the colonists were quite different from one another before they left Earth, “[o]ne generation in, and none of that […] mattered anymore. It shouldn’t have worked, but it did. The close confines of the Forlorn […] created a melting pot” (148). Oliver’s memories of New Sonora are filled with community members bonding over shared pleasures like his grandmother’s and Mrs. Gonzales’s baked goods. New Sonorans are quick to come to one another’s aid and cooperate smoothly to defend their home. Unified by their New Sonoran identity when attacked, the colonists do not simply look after their own interests. Instead, the Lewis farm becomes a home for refugees from all over the countryside, and younger, healthier people go to great lengths to protect the elderly and less healthy members of their community.

Earth society, by contrast, is used to illustrate the negative effects of cultural chauvinism. After colonizing many planets, humans remaining on Earth see the societies established by colonists as the “other.” This allows Earthers to conduct campaigns of genocide against planets like Demeter and New Sonora—and plan for many such campaigns in the future to secure land and resources. Calling the New Sonorans “subhuman” illustrates this othering, enabling Earthers to treat these peoples as legitimate targets of extermination. As Oliver points out, “being xenophobic [is] their thing” (26).

Despite Oliver’s conviction that it’s only Earthers who exhibit the negative aspects of in-group allegiance, New Sonorans are not blameless. Like real-life European colonists, they have accomplished their expansionist dream of colonizing New Sonora utilizing the enslaved labor of Traducible AI entities like Roger. They strike a bargain with Earth to cooperate in the destruction of these entities, making New Sonorans complicit in what Roger sees as the genocide of Traducible AI. The relationship between New Sonorans and Traducible AI supports the idea that the impulse to create an “other” is inescapable, even among well-intentioned humans.

Characters are aware of this problem. Sheriff Acosta refers to the inevitability of harmful in-group loyalty when he tells Rosita, “Some things we can’t fix. One of those things is people who are from one place disliking people from a different place” (132). Near the end of the novel, Roger states that, given the events Operation Bounce House, he now agrees that “humanity is so tribal that they [will] eventually attempt to hunt down and kill everyone that [is] different from themselves” (437). What Earthers did to Traducible AI is exactly what they want to do to New Sonorans: “It is something that they have always done since the beginning of time. It is something that will continue to happen” (334).

Roger-Pinnacle’s conviction eventually leads him to destroy the gate between New Sonora and Earth to protect his home world. This segregation of different groups is one potential, if bleak, solution the novel offers. Another potential solution is the elimination of much of Earth’s population. The unsettling ending suggests that Roger-Eidolon is still actively considering annihilating the human race: “[T]he only way […] to be truly safe [is] sunset the human civilization, or at the very least limit it” (437). Holding complete destruction over the heads of his audience in his final message, Roger-Eidolon threatens Earth with consequences: “It’s your decision. What will you do, I wonder?” (437).