Previous research portrays radical‐right voters as economically, geographically, or politically marginalized. However, it seems implausible that these self‐perceived ordinary people—often overrepresenting historically powerful majorities (Whites, men, Christians)—are also socially marginalized. In the present article, I theorize why they may still feel socially excluded: Optimal distinctiveness research posits that individuals feel included in society if they experience (1) belonging to it and (2) uniqueness within it (i.e., feel their background is recognized). I argue that historical power and self‐perceived ordinariness satisfy most majority members' belonging need, but recent diversification and liberalization leave their uniqueness need unsatisfied. Indeed, cluster analyses of American National Election Studies (ANES) data show that a substantial share of majority members experiences firm belonging to society but lacks uniqueness therein. This group is more likely to support Trump than individuals whose needs are satisfied. This article contributes a social‐inclusion perspective on radical‐right voters' position in society.