Millennials have not been around long enough to mess things up. Baby boomers have. But don't forget that the Boomers' parents, the G.I. generation, brought us the Great Society, the defeatist strategy in Vietnam, large scale deficit spending, the "civil rights" revolution, and the sexual revolution. In turn, the G.I. generation's parents, the lost, or World War I generation, gave us the New Deal, "progressive" education, and the lawlessness of Prohibition. Their predecessors, the post Civil War generation, gave us the Progressive movement, which imposed the income tax, central banking, and widespread Federal and state regulation of commerce.
Bishop Fulton Sheen once observed that children complaining about the failure of their parents is a cycle that ultimately ends with Adam and Eve.