Understanding Mental Health Vulnerability Through Intersectionality: Racial Discrimination Among African Ethnic Minority Groups in Belgium Racial discrimination continues to impact mental health of Immigrant groups in Belgium, even as our society grows more diverse. Migration, cultural mixing, and socioeconomic stratification have created a social landscape where subtle forms of discrimination especially microaggression, continue to persist. These hidden dynamics harm not only the individuals who experience them but also Belgian society at large. This paper demonstrates that women, those with limited language proficiency, and low-income populations are particularly vulnerable. Language proficiency, for instance, goes beyond communication, as it is often tied to identity and social perception. Individuals with only moderate language skills often lack the assertiveness to defend themselves against microaggressions. This compounds stress and limits their ability to integrate effectively. Additionally, household income plays a crucial role: Amongst low-income groups, financial strain often affects mental health more than discrimination alone. This reflects how one’s state of life and position in the social and economic structure deeply influences one’s well-being. More integration or higher education does not guarantee less discrimination. Even individuals with legal status or Belgian nationality face persistent exclusion. Notably, 60% of highly educated individuals continue to experience microaggressions, underscoring that systemic issues cannot be resolved through integration efforts alone. Discrimination has broader societal consequences. Migrants naturally become part of society and the economy. However, when discrimination hinders their integration, it can lead to alienation, lower cooperation, and fewer economic contributions. We often see these effects in segregated neighborhoods and in increased dependence on the social welfare system. If these populations are not supported, they risk being pushed into informal employment or exploitative labor. This further weakens Belgium’s financial base and widening social divisions. Ignoring the mental health of immigrant populations risks deep, long-term consequences. Disengagement from society, unstable income, and declining mental health create a cycle of marginalization. Without intervention, these individuals may become distanced from society altogether and dependent on systems that were never designed to address chronic exclusion. Therefore, it is imperative that the Belgian government identify these vulnerable groups and fund targeted, data-driven interventions. Tailored mental health support embedded within integration efforts will not only be more effective, but also more economically viable in the long run. Finally, to foster an inclusive and sustainable society, Belgium must invest in understanding the lived realities of discrimination. This includes educating both youth and adults about the value of mutual respect, dignity, and the collective cost of social exclusion. Research is the first step toward building a society in which all individuals regardless of their background can thrive, contribute, and feel they belong.