Abstract: Following the 2015 #RhodesMustFall movement in South Africa and amidst calls to «decolonize academia», decolonial theory has become increasingly read and cited in many academic disciplines. But as I seek to demonstrate in this essay, decolonial theory as elaborated by the leading exponent of it, Walter D. Mignolo, is beset with internal contradictions and inconsistencies relating to its view of non-Western imperialism and settler colonialism, which has led it to not only being appropriated by a transnational far-right, but also to increasingly work in tandem with it. These, then, are the aporias of decolonial anti-imperialism.