A pure democracy is if you lose you can be voted dead. In a constitutional democracy it may not be so direct: i.e. if the majority elect officials that favor say large automotive companies that are permitted to introduce externalities to the water supply that make you dead (see flint water crisis) -- or say your county elects a sheriff who is known to shoot people in 'bad shoots' and then the democratically elected officials prevent effective prosecution of these murders.

That's an indirect death. In the mafia analogy the mafia is the government and challenging them requires force which can result in death.