The boundary problem asserts that defining the citizenry cannot be settled by democratic voting. Why is this logically so, and what does it imply for democratic legitimacy?

C. A vote on who may vote already presupposes an established demos

Treating franchise limits as resolvable by majority rule creates infinite regress, as deciding the original electorate requires a pre-existing decision. Equating democracy with sheer universalism ignores constitutional design, whilst representative filtering addresses policy rather than membership.