Maybe encryption should be illegal if it is used to hide crimes from law enforcement. That doesn't mean it still can't be used. I carry a concealed weapon with a license, that doesn't mean I can just shoot people willy nilly. 
We need a forum for CCW and bitcoin enthusiasts.I would imagine many people who support Bitcoin also support gun rights. Well at least in the US (and a handful of other countries) where such things still exist.
Economic freedom & freedom to exercise lawful and effective self defense. It all boils down to freedom.