Most of the time communism is dominated by a single party, and the ideal democracy has many- or non at all. Think of politics as a number line, left goes toward communism, and right goes towards fascism, and in the middle is democracy, in a democracy, the government shouldn't play an extreme roll in your life, but in a communism, it controls everything, from a humble farm, all the way to literally anything. It makes life easy, but really its a dream that can't really happen. There are many differences between communism and a democracy.
