By the way, it's very interesting to see what BRICS will achieve. Them being strong will really reshape the global order but will it be for better or for worse? Will the quality of life improve in BRICS countries if they become less dependent on the western world? I don't think so.
Multipolar world is the normal world that has been the situation for thousands of years compared to unipolar world that is abnormal and barely lasted 20-30 years. So I believe that BRICS and generally any attempt at helping the establishment of an actual World Order is a good thing.
Whether the quality of life of individuals in each country is going to improve or not depends on the government the people choose. If it is a competent one, then yes it will improve.
For example read what I explained
here 4 months ago. Now tell me how many competent governments among the almost 200 countries in the world took advantage of such opportunities? (some users posted some examples in that topic itself) In this small example, something like BRICS can only help but it still needs competent people in office to actually take advantage and change policies, strike deals with other countries, etc. to improve things.
I see the big picture of the BRICS target with the presence of the world's four largest oil producers is de-dollarization, specifically reducing oil trade transactions using dollars (petro dollars). BRICS could create the potential for collaborative action to shift the petrodollar paradigm. The less dependent a country is on the dollar, the less the United States will intervene, particularly in managing potential currency fluctuations.
The BRICS dedollarization agenda began with Russia and China demonstrating to the world, especially developing countries, that their economies were threatened by the United States, and that whenever economic sanctions could be imposed, the BRICS offered an alternative payment method for international transactions in the local currencies of fellow BRICS members. China and Russia also provided education to many developing countries to strengthen their local economies by reducing dependence on the dollar. Furthermore, they also integrated dollar-free payment systems.
Ultimately, the primary determinant is a country's priorities in its national interests. Even within the same region, different countries will have different decision-making styles. There are no permanent friends or enemies; there are only permanent interests.