This chapter extends Identity Restoration Theory beyond correctional settings and examines its relevance within overpopulated and culturally fragmented communities. It analyzes how demographic pressure, migration, and structural inequality disrupt cultural continuity, weaken social bonds, and fragment collective identity. The chapter explores education and community engagement as central forces that restore belonging, moral orientation, and shared meaning within these environments. It emphasizes the transition from individual identity reconstruction to collective renewal, highlighting how culturally grounded learning strengthens social cohesion and ethical responsibility. The discussion addresses policy and ethical implications for societies confronting overpopulation, exclusion, and cultural erosion. Through Identity Restoration Theory, the chapter argues that sustainable justice and social stability require cultural restoration as a foundational element of community resilience.