What is being discussed is not a new currency as a replacement for $US within this country, but a less volatile unit of measure for international trade.
Instead of having one barrel of oil valued at $US52 we will have a barrel of oil valued at WCU33, where WCU (World Currency Unit) is a function of several currencies. The idea is to limit the ability of the US to tax world wide populous at will.
It is natural for the rest of the world to try to shield off from consequences of O’s policies the same way we try to reduce/remove the foreign oil dependency, no?