Communism is deposed not by ballots, but by total economic breakdown. A form of Communism can prevail, but they are forced to adopt a recognition of individual initiative, reintroduce the profit motive, and act as if capitalism can work. China has adopted this approach, North Korea has not.
Venezuela, so far, more nearly resembles North Korea than China.
Which is why thug "investors" love it when they get to buy at fire-sale prices after said collapse.