No one in his right mind will keep coins in a chinese exchange anymore.
This is exactly why I believe the Chinese exchanges are being killed and will be killed by the People's Bank of China. They will drag this ban on cryptocurrency withdrawals for as long as it takes.
Even if they confiscate all BTC in China and all mining power (so much that they could control the network), the BTC community could simply do a hardfork of the BTC network (a freeze, if you will) and continue with a different algorithm from that point in time on.
It will be really bad for the price of Bitcoin though. The top altcoins are gaining ground in the dominance. Read this
http://coinjournal.net/bitcoin-dominance-index-crashes-80-ethereum-dash-rise/One that is not controlled by China. It is easier to hardfork BTC software, than to build hardware with more than 51% hashpower for algo XY, a race that China cannot win.
Why talk of a hard fork? The present debate on it is as bad as it is. It must be avoided.
So I guess BTC cannot be killed, not even by Chinese government.
Yes. Just like how the Chinese government cannot kill Dogecoin.