You're right about it. It is just like a gun, a terrorist could use the gun to kill innocent people, while police use the gun to kill the terrorist. Those two people with almost the same usage could be seen in different ways. Bitcoin is a tool which could make some wealthy, while it could also be the tool to make someone drown to financial crisis. But just like terrorist and police, there are more people who use and took advantage of the bitcoin in order to perform their illegal activities. We can't really balme bitcoin, just like we cannot blame guns. But this world who runs by people is the one who should be blade due to the attitude of one.