Shiv Sena patriarch Bal Thackeray on Friday attributed the party's poor show in the Maharashtra assembly polls on the young generation's 'ignorance about the travails' the party has gone through for the state. "The young generation is a stranger to the history of Maharashtra and the Sena's fight for the Marathi cause. They have ruined Marathi unity in just a day," Thackeray rued in an editorial in party mouthpiece 'Saamna'.