In this essay, I argue that even when they appear to help, restrictions on migration are usually only an impediment, not an aid, to cosmopolitan justice. Even though some egalitarian cosmopolitans are well intentioned in their support of migration restrictions, I argue that migration restrictions are (i) not truly cosmopolitan and (ii) will not have the kinds of consequences they expect. My argument in defense of this claim begins, in section 1, by outlining a defense of migration restrictions based on egalitarian cosmopolitan grounds. Then in sections two and three, I reply to the harms this position associates with open borders and provide some reasons as to why restrictions on migration are incompatible with cosmopolitan justice
