The "Greatest Generation" should be called the Statist Generation because they gave us the New Deal, the Fair Deal, the New Frontier and the Great Society. Their legacy is the modern welfare state run by an omnipotent federal government.
Most of the “Greatest Generation” were kids at that time. The average age of a solider in WW2 was below the age to vote (21).
Those were the people from WW1 and the chaos of the years following it, as well as the people that were influenced by the reds in Europe in the 20s that got us that stuff.
The “Statist Generation”—very fitting!
And in truth each subsequent generation has taken it further still.