Maybe we don't have to worry, because the Bitcoin network will be even more secured and the diff. rise would probably affect BTC price (same goes for some altcoins), but it would prove what I'm saying for ages: Decentralization is a dream.
This is true. And, in theory, Chinese would not "break" the network simply because it would be bad business.
But it doesn't hurt to worry a little and keep the eyes open....
EDIT: This post just made me a Legendary member. Much wow, such BS. 
Congrats!
You know? Sometime I wish I was Hero again, especially when some people think that if you are Legendary you cannot mistake anymore.
But yeah, enjoy your new rank, I don't want to spoil that