Philosophical defences of the right to exclude migrants generally proceed by analogy — to a club selecting members, to a family choosing guests — and the analogies break in the same place. A club is a voluntary association whose members chose to join; a state assigns membership at birth, and the person excluded is excluded from a set of institutions that determines their life prospects more thoroughly than any club could. The disanalogy does not by itself establish a right to enter, since a state may have obligations to existing members that open admission would compromise. It does mean that the burden of justification sits with exclusion rather than with entry, which reverses the framing of almost every public argument on the subject and is part of why philosophical work here has so little political purchase.