Thing is, I do not really think that something as large as bitcoin can be controlled by miners in a single country. If Chinese miners refuse to mine, it will only increase the earning chances of miners in other countries.
It's a fact that Chinese miners control the far majority of the mining industry. And I really believe their market share in the mining industry will grow even further throughout the years. Can't really blame them as the larger mining farms make good money every month. And in some way they also have big influence on the major exchanges there in the way that they will not allow the price to drop below a certain price level.
