Many of the problems that sunk the Soviet Union are now endangering the United States as well. Such as a huge, well-equipped, very expensive military, with no clear mission, bogged down in fighting Muslim insurgents. Such as energy shortfalls linked to peaking oil production. Such as a persistently unfavorable trade balance, resulting in runaway foreign debt. Add to that a delusional self-image, an inflexible ideology, and an unresponsive political system.
The population of the United States is almost entirely car-dependent, and relies on markets that control oil import, refining, and distribution. They also rely on continuous public investment in road construction and repair. The cars themselves require a steady stream of imported parts, and are not designed to last very long. When these intricately interconnected systems stop functioning, much of the population will find itself stranded.
It is certainly more fun to watch two Capitalist parties go at each other than just having the one Communist party to vote for. The things they fight over in public are generally symbolic little tokens of social policy, chosen for ease of public posturing. The Communist party offered just one bitter pill. The two Capitalist parties offer a choice of two placebos. The latest innovation is the photo finish election, where each party buys 50% of the vote, and the result is pulled out of statistical noise, like a rabbit out of a hat.
The American way of dealing with dissent and with protest is certainly more advanced: why imprison dissidents when you can just let them shout into the wind to their heart's content?
The American approach to bookkeeping is more subtle and nuanced than the Soviet. Why make a state secret of some statistic, when you can just distort it, in obscure ways? Here's a simple example: inflation is "controlled" by substituting hamburger for steak, in order to minimize increases to Social Security payments.