Oil is still the blood of capitalism. Though you are being flooded with news of "alternatives" and "renewables," there is really nothing else that can keep the trillions of dollars of infrastructure going.
It might have been possible to make a gradual change if we started 30 years ago, but now affordable oil is running out (yes, running out) and the current system is already unsustainable.
Americans are living in a dream world where they can have both cars and democracy.