Yup - governments can stop bitcoin - just outlaw exhanges and make it a crime punishable by death to own them and people will stay away
But then you have to ask yourselves which countries have cultures where they can easily ban Bitcoin and actually do it. It's easy to say that governments will ban it and use China as an example but China is not a free country - this is a country that's banned Facebook - sheessh, Facebook for crying out loud, Instagram, Youtube and so on.
Just ignore China and think of other countries - do you imagine Switzerland, France, Australia, Japan, Korea, Germany and so on actually blocking bitcoin.
I mean think about it - Japan has accepted it. Australian senators are pushing for bitcoin bec they're afraid to get left behind this technology, even Russia is warming up to Bitcoin.
Right now, just ignore anything related to China - Bitcoin may still dip due to them but other nationalities will just scoop those cheap Bitcoin up.
Actually I'd rather they come out with more FUD again as I need to buy more cheap coins.