And that's the rub. Obama is a Communist. He is adamantly opposed to free enterprise and private economic growth.
He believes with religious fervor that the State, though virtually unlimited power to tax, should redistribute wealth in what he considers a "fair" way.
Of course that mindset shows no understanding of what really powers successful economies. But it isn't his math that's faulty; it's his Marxist ideology.
He wants to be reelected so he can finish the destruction of this great nation