Even if Trump were not president or if he did not do all those things to harm allies and the world, that would not stop the BRICS de-dollarization agenda. Simply because the world has seen the true nature of the US and NATO over the past decades. The world is tired of a unipolar, dictatorial world. What other countries want is a multipolar, more equitable world. What Trump is doing is only helping to accelerate the de-dollarization process and attract more countries to join this revolution.
The US new tariff policy has given the world an important lesson that how important self-reliance is. Today it's USA tomorrow it will be some other super power, it's vital for every country to depend less on big powers discounted rates. There are countries which are doing good despite the fact they don't have good relations with USA but they are self sufficient in producing items to meet domestic needs. This new tariff policy has created more problems for USA as it badly bounced backed and now the world is looking for new frontier of trades where their is less reliance on USA.