What is the lost cause

A Pearson or thing that gives rise to an action, phenomenon, or condition.

the lost cause Is an American historical ideology that holds that the cause of the Confederacy during the American civil war was a just and heroic one. The ideology endorses the supposed virtues of the antebellum south, viewing the war as a struggle primarily for the Southern way of life, or "States rights", in the face of the overwhelming "Northern aggression".