# The Yearning to Belong Produces Exclusion as a Side Effect
## Claim
Groups draw "who doesn't belong" boundaries not because exclusion itself is gratifying, but as an incidental byproduct of how badly members want to secure belonging for themselves — so interventions aimed at reducing prejudice work better when they secure in-group belonging than when they try to suppress out-group hostility directly.
## Evidence
**Source**: [[3. Resources/Literature Notes/Can We Build an "Us" Without a "Them" With John Green]]
## Scope & conditions
- Holds when: exclusion is emerging organically from a group's own need for connection and identity (new communities, fandoms, in-groups forming around a shared interest) — the Nerdfighteria case in the source is a worked example of a group recognizing and correcting its own unintentional out-group.
- Breaks when: exclusion is being actively manufactured or weaponized by leadership for control (scapegoating, doctrinal gatekeeping) rather than emerging as a side effect of belonging-seeking — that's a different mechanism (power consolidation, not incidental boundary-drawing) and needs a different diagnostic.
## Links
- [[Commons & Community Governance MOC]] — because applies-in: belonging/exclusion mechanics are the boundary-design half of this MOC's Ostrom-boundaries thread — how a boundary forms, not just how it's declared.
- [[3. Resources/Permanent Notes/Belonging Requires Choice Connection and Progress]] — contrasts: that note describes what keeps someone inside a community once they're in; this note describes why communities draw a boundary around who gets in in the first place.
- [[3. Resources/Permanent Notes/Question-Suppression Is the Load-Bearing Mechanism of High-Control Groups]] — contrasts: marks the boundary condition where exclusion stops being an incidental byproduct of belonging-seeking and becomes a deliberate control mechanism instead.
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