The story
Attributed to the Genevan philosopher Jean-Jacques Rousseau. The original quotation was: “Quand le peuple n’aura plus rien à manger, il mangera le riche.” (“When the people shall have no more to eat, they will eat the rich.”) Became popular in the 21st-century United States as an anti-capitalist motto in left-wing online communities.
Etymology from Wiktionary, CC BY-SA 4.0.