Chinese people are highly industrious people, very hardworking is an understatement.
Most Chinese citizen has bitcoin mining farm when the going was good, the largest number of such industry exists only in China.
Does China Control Bitcoin? China dominates bitcoin and can easily determine its fate and that is the major reason behind the spike in btc price whenever the Chinese president says anything about it unlike other world powers.
Chinese people are united, and they are working together. That kind of working power and good organization made them to be one
of the strongest nations in the world. They are playing important role almost everywhere, crypto-currencies are just one of their interests.
Together Chinese can manipulate with markets around the world, they manipulate with crypto-market too. We can't do much about it, I
don't think they control entire market, that's impossible, there are other strong players too.