I do not know, it may look like it, but it was impossible bitcoin which has international functions, controlled by one country. maybe they can control it with a 70% bitcoin who have been scattered. but, thinking about it alone is impossible. maybe they just want to have a lot of bitcoin.
I can't compare China to my country. I cannot compare 1 BILLION people to a few dozens of millions.. It's basically 100x, more or less the effects that we see but as there are many, many people talking to each other the Bitcoin word is being spread around and more people find out about it there. They control most mining part though, especially because there they can get dirt cheap rigs.