Why is Donald Trump concerned about BRICS and declaring it 'dead'?

Trump is concerned about BRICS primarily because of de-dollarization efforts - attempts by member countries to reduce dependency on the US Dollar for international trade and reserves. This perceived threat to dollar dominance prompted Trump to declare BRICS 'dead' and threaten 100% tariffs on its members. BRICS has expanded beyond its original five nations to include countries like Egypt, Iran, and the UAE, now representing over 31.5% of global GDP, surpassing the G7's 30%. This economic influence threatens US financial hegemony, though many BRICS members maintain strong ties with Western nations while seeking to reform the global financial system.