it wouldn’t be surprising if the countries in brics turned in on each other after they have defeated the us after all their intentions would be to improve their country’s standing
maybe china would push for their country and others wouldn’t like it and eventually leave or maybe they will all get along and have a global/international support group
The goal of BRICS is not to defeat the US and become the new world ruler, their goal is to reduce dependence on the USD. Creating a multipolar world with evenly distributed power to make the world more equal, a world not bound or oppressed by a single power. So the scenario of them turning their backs on each other and falling apart is very unlikely, they need to maintain that to keep the world multipolar and that is their goal. How can they easily give up the achievements they have worked so hard to achieve if they succeed in creating a multipolar world?