I have said this a few years ago, as it seems i shall repeat it again.
Russia has to drop dollar as a reserve currency or for its bilateral transactions with other countries esp its potential allies/FriendlyCountries. Iran is in the same situation but China, it will take some time for China to be prepared and also to tolerate its grave consequences. China has conducted mega projects such as OBOR, CPEC, etc just to prepare itself. The most important matter for Chinese is energy security to take on the American global dominance in the world market.
It is true that China-US trade volume is hundreds of billions of dollars but the NATO advancing towards Chinese borders is convincing the Chinese to fight American dominance on every front. The blade of sanctions is always threatening Chinese throat, the trade with west even if trillions of dollars is not worth living under western threat.
As for the trolls, it took decades to replace British currency and to eliminate its dominance, it will take long to do the same with dollar. Don't derail the thread, it is on its way.