Communism seeks to transcend national boundaries and promote a worldwide proletariat revolution, where the foot soldiers are bound together not by a common nationality but by their membership in the same economic class.
United nations?

2. They try to regulate encryption technologies using licensing requirements etc, has that been successful? They try to regulate drugs, do you think that has been successful? They try to regulate torrenting, how has that been going? Do you have an argument to explain how bitcoin, or more specifically cryptocurrency in general will be different? I don't think shutting down all the exchanges will end bitcoin, local bitcoins and other similar methods will still exist. Although the liklihood of that happening is incredibly small at this point anyway.
Unlike bitcoin, those are all purely digital things. You don't go to the store to exchange milk for a pirated DVD.
That being said, bitcoin CAN be used in purely digital format. Buying anything digital online.
Gold, drugs, guns, prostitution, alcohol, (i left out a lot use your imagination.) are all digital? Goes to show you aren't reading anything therefore not considering it. You're trying to be right and just jumping to conclusions. Sad thing is Im mostly agreeing with you. Take a step back and relax, then you can think.