Karl Marx remains one of the most referenced and taught authors in Academia today. The best that one has been able to say about him was that he was a great historian and sociologist, but a failure as a prophet. It was supposed to be a rich industrialized country that turned socialist and, ultimately, communist, not a relatively poor and just-beginning-to-industrialize country such as Russia. (the Bolsheviks got a big boost from Germany, though, which may have distorted the natural course of history)
What if the socialist governments that returned to a market system, e.g., in Russia and China, were not evidence that Marx was wrong, but only that the particular countries that had adopted socialism weren’t rich enough?
The U.S. right now is in an unprecedented position of material prosperity. Americans on welfare today have a far higher material standard of living than did middle class Americans in Marx’s time. Suppose that Bernie wins the primary elections and then at least wins the popular vote in November. Wouldn’t that be evidence that Marx was right? Once a country is rich enough, the working class citizens will demand socialism and many of the elites will go along with this.