Chapter 5 assesses harms that people with mental illness experience that are related to how their self is constituted. These include harms of de-individuation and mis-identification, but also, as this chapter focuses on, harms of social exclusion and dehumanization that result from status loss and moral distancing. Dehumanization occurs through both being reduced to a stereotyped trait and being viewed as lesser compared to others. Having a sense of belonging and being accepted as an equal member of a moral/epistemic/social community are important parts of being viewed as and viewing oneself as a full human being; these are also critical for developing and exercising autonomous agency as well as for well-being and flourishing. People with mental illness are often excluded from these communities as a result of public stigma, diminishing their autonomy and well-being. This chapter shows how dehumanization, social exclusion, and belonging uncertainty threaten belongingness and autonomy.