Money is a economic good, like anything else. Economic good are traded on markets.
Controlling markets isn't capitalism. If you're in favour of communism, where markets and economics are all controlled, Bitcoin is not for you.
While I do agree that trying to control bitcoin isn't good (if not futile) and also not capitalism in its purest concept, I understand that communism in its purest concept also does not rely in a central government, rather being decentralized and run by the people.
I think that government systems that are run by a big, fat, central institution that dictates every aspect of people's lives are rather an unhealthy form of socialism.
Not related to the topic, but it's an interesting discussion.