can you name me a new technology that has been banned? why on earth would bitcoin be the first one? digitization of our entire culture is inevitable. digitization is in the sam e league as industrialization. it cannot be stopped.
Possession of a Guggenheim printing press might have cost you your life at some points in history.
Distillation is widely illegal on an individual basis. Absinthe suffered a worldwide ban post-WW2. Hell, even alcohol itself was illegal in the US for a good time during Prohibition.
Equipment used for counterfeiting currency is illegal
Torrenting DRM material is illegal
Anti-DRM technology is illegal
Owning gold as currency was illegal in the US during wartime
Certain drugs and technology to produce them, both natural and synthetic are largely illegal.
Weapons of mass destruction are illegal (as mentioned)
Firearms are illegal in many countries
Hell, the Internet is even illegal in some countries. Certain social media is illegal behind China's great firewall.
There is even talk of making some types of encryption illegal
Basically, any technologies involved in the spread of information or ideas or substances that affect thinking or could cause harm or disruption to society have, at some point or another, been banned or attempted to be banned by some government. Governments and those in power will do anything to maintain the status quo.
I agree however that most technologies cannot be stopped. Won't stop them from trying, though.