If the question should be left as an exercise, then I'm justified in asking it.
Democracy has nothing to do with what I've asked. We live in a world of various societies each composed of distinct histories, laws, ideologies, creeds, beliefs, cultures, etc. This is as true today as it was millennia ago, before the existence of modern democracy. None of these societies are or were interchangeable, whether across space or time, and many are mutually irreconcilable with respect to one another. Historically, these differences were "settled" with massacres and revolutions, where the victors stood righteous and the losers denounced as animals, barbarians, deviants, heretics, apostates, reactionaries, terrorists, and other terms of abuse. Today, these battles are waged in parliaments and on Internet forums, where the methods are less bloody the but rhetoric and reasoning (or lack thereof) remain relatively unchanged.
Societies, as they exist in the real world, aren't simply voluntary associations of rational individuals (as much as I would like that). They are, whether by accident or design, sets of historical decisions that have accumulated currency in a sufficiently large or sufficiently powerful group of people. These same people are willing to engage in violence or coercion to defend said decisions with little concern for truth.