We can not do anything with bitcoin because chinese demand is too high and Once there are anything happened with bitcoin or chinese investors of bitcoins. that is very big problem because They owned biggest bitcoins in the world (90% bitcoin amount from China). I think we need another digital coin for the rest of the world.
Where did you get the source that 90% bitcoins are from China, that's an absurdly high number.
I think China has nothing with changing the price for bitcoin.
actually they have lots to do with bitcoin price but not the way that people like OP are thinking or pretending.
Chinese like many other people in many other countries have been investing in bitcoin a great deal of money because they unlike many ignorant people have realized that bitcoin is potentially great for many things first of which is profit as an investment.
and in any kind of investment let it be bitcoin, gold or stocks of a company when prices go high this fast they are bound to come down to the normal levels.