from china? if i were in that situation i'd be having a mega dump and walking away somewhere around right about now if something like this was a dead cert.
we've yet to see how a vibrant ish bitcoin scene would weather some type of government strangulation, and forget trying to block the protocol, all you gotta do to deter 99% of people is shut the exchanges, but i don't think many people are gonna stick around for a money that has no use to them.
You are missing the point that the Chinese want to move funds out of China - bitcoin is one avenue to work around the $50K annually limit. If it becomes obvious that this avenue is being to be closed - then people will flock to move their funds as quickly as possible.