A multipolar world will need a GLUE to connect the US system and the BRICS system, this is bitcoin. A global BRICS system guarantees that the US cannot ban btc from existence.

The three systems will run in parallel. Over time btc will take over from the other two as it becomes more and more obvious that there is only one choice and the younger generations grown older.

Eventually, the countries that get into bitcoin first will be the most neglected. Then the countries with the least to gain from the US system and brics system. And then finally the large nations themselves when they see the writing on the wall and cause a huge FOMO.