Dedollarizing is such a difficult act to carry out because of the economic alliances the US have with many developed countries especially those under its NATO protection.Many of those NATO countries are anti-Trump but are stock to the tariff war because of the risk of being at loggerheads with the US. The US isn't new in this antics. It has worked previously in multiple occasions, so why change a winning strategy? The Trump policy is yielding possible effects on the US economy in the check the stock market.
One of the benefits of US flip flopping like this is that it first helps countries to wake up and face the reality of US regime; and second will help them prepare which will put US in a disadvantage on its next flip flop.
US regime did two things wrong.
1. They waged war against the entire world not just China.
For example if you check the list of tariffs Trump released on the first day, it included majority of the countries. This war hurt everyone, but by doing that it also told everyone how aggressive US regime is and how distancing yourself from US is beneficial. Distancing means decoupling from US economy as much as possible, dedollarising, etc.
2. They backed off of their aggression
After showing their true nature, they slightly backed off by reducing tariffs a little, etc. That means the instability US regime caused is diminishing but it is going to be a great opportunity for that decoupling I already mentioned. It an happen easier in a less volatile and aggressive world.
Now the only question left is which countries succeed in decoupling from US more than others?