That's one close vote. I don't think china is controlling bitcoin but they are running a stupid amount of trading bots. I'm pretty sure they ones really controlling bitcoin are from the USA.
USA controlling Bitcoin? Don't make me laugh.
China controls every aspect of Bitcoin from being the far majority when it comes to the world hashing power, till the trading volumes.
Western exchanges look at China to see what direction they will be moving to. When China doesn't move, western exchanges will also not move.