I will put my money on the Chinese government. Your Bitcoins are worthless if you can't exchange them. A business will not risk losing their 'real' assets in favor of Bitcoin 'economy.'
The play in the U.S is cute but make no mistake; the government can pull the plug at any given moment, and there is absolutely nothing you will or can do about it.
Of course if they convince the EU and US to join the ban then I would agree with you.
The U.S will never allow a bunch of randoms to have any financial leverage because they 'mined' a virtual coin. Corporations and people with money will just flee the country.
People with serious money laugh at Bitcoin 'millionaires'.
Drugs are highly illegal all over the world and yet it's still easy to buy them with a few phone calls. Now imagine if drugs could be shipped instantly over the internet from another jurisdiction where they were legal. There would really be no way to stop them. China can't do shit on their own if Bitcoin stays legal in EU/US.