Though it might make for a good conspiracy, a 51% attack would be counterproductive to who ever is attempting it. It could cause all other holders to dump their coins and you being holder of about half of it would suffer with them. And what would you rule after this, ashes?
A state funded chinese miners attack to push the BU agenda is being FUDded by the nasty Jihan guy on twitter. Of course it will be another failure and then BUcoin can finally join XTcoin and Classiccoin altcoin cemetery.
and the difference is huge as they are the only people who has invested heavily into mining equipments as well as the Chinese exchanges trade in the highest volumes per day and so they have the upper hand than the rest of the world but that does not mean that it is centralized. 
this makes me think to research and update my knowledge about the hashes and hashes distribution of Bitcoin, where it came from the owner of those mining farm so that i can follow your conversation with OP if the OP decides follow your suggestion, though I think this topic had been brought here in the forum way back since CEX.io are still in operation as Cloudmining company. I am waiting for OP's response of pooya87 invitation 