Social stability in the United States increasingly depends on the interplay between institutional trust, community engagement, and workforce participation. This paper examines how declining trust in government institutions, weakening civic participation, and persistent labor market exclusion threaten democratic governance and social cohesion. Drawing on social capital theory, institutional theory, and intersectionality frameworks, the analysis synthesizes empirical evidence on trust deficits, engagement patterns, and employment disparities across demographic groups. Three policy domains emerge as critical: rebuilding institutional legitimacy through transparency and accountability, leveraging community-based organizations as intermediaries for civic participation, and addressing structural barriers to workforce inclusion. The paper presents evidence-based policy recommendations targeting these interconnected challenges, emphasizing coordinated interventions that recognize how race, class, and gender shape access to political voice and economic opportunity. Findings suggest that sustainable social stability requires simultaneous investment in institutional reform, grassroots civic infrastructure, and inclusive labor market policies.