I argue that the Mariel Boatlift – and its accompanying anti-immigrant backlash – helped reframe debates about immigration within the politics of respectability. Miami was ground zero for the growth of the “English Only” campaign in the United States, a movement fueled by the trauma of Mariel. As Cuban Americans aided vulnerable migrants, they also aimed to protect their reputation and the economic and political gains they had made in South Florida. To do so they turned especially to the language of respectability. Bilingualism in Dade County, the election of Cuban Americans to office, and the rise of a national political lobby had to be defended by an exemplary people, not by criminal outcasts. The ensuing debates propelled marielitos into competing claims about immigration, anticommunism, and the rights to equal treatment under the law of gay, disabled, and law-breakers. The battles over the Mariel detainees ultimately lay bare the intersection of respectability, marginality, and politics in the Reagan era.