The album will be released on July 4 because Jay-Z epitomizes the American Dream, which is to sell things on July 4.
The Blueprint dropped on 9/11, so it is only right that Jay release Magna Carta, Holy Grail on 7/4. Celebrate America's independent spirit by supporting brand synergy! Conspicuously consume to alleviate your deeply held suspicion that the country is on the wrong track. Blow some shit up with fireworks! Listen to Jay-Z! What better symbol of American exceptionalism than a crack-dealer turned rap mogul known for being a ruthless capitalist who'll do anything to get ahead? (Seriously, there is no better symbol. Jay-Z is the Great Gatsby. Jay-Z is America.)