The Russian public in 1917 wasn't ready for Marxism. They were generally impoverished and uneducated. That's why the 'government' was able to take control of so much from the local soviets. There was no communication and goals were vastly different between soldiers, workers, and the middle class during ww1
Take a soviet government and implement it today, when the communication infrastructure is already built, the US isn't in a battle for its own existence, and the vast majority of people have at least a high school education. It's pure democracy at its best, with local politics inflicting its will on national politics, rather than the other way around.
There would be casualties of course, which is why any sort of change in government is impossible without revolution. The people who currently control our media machine, those who make money creating no product of their own, the bourgeoisie. They lose here, and they have somehow convinced huge chunks of the country that we should keep leaning farther right, until now we have a candidate who is closer on the political spectrum to Hitler than Reagan. Hell, Hillary isn't that far left of Reagan and she's far to the right of most political parties in the rest of the first world. As the rest of the civilized world grows to the left and thrives, the US leans right and strangles. Maybe Marxism is too extreme, but I'd rather be on that end than the end we are headed towards now.