This article interrogates the convergence of doomsday prepping, sovereign citizen ideology, and Indigenous identity appropriation within contemporary Australian conspiracy culture. Drawing on interdisciplinary research in sociology, Indigenous studies, and political theory, it argues that these intersecting practices represent a settler-colonial performance of resistance that undermines Indigenous sovereignty. The article examines the proliferation of “New Identifiers” and self-proclaimed Aboriginality through genetic essentialism, conspiritualist narratives, and settler nativism. Using recent case studies and critical Indigenous scholarship, it positions these identity claims as symbolic acts of recolonisation that reassert white possession in the name of freedom, spiritual awakening, or bureaucratic dissent. The paper concludes with a call for robust Indigenous-led frameworks of cultural recognition and policy reform.