We're already contending with the Russia and China part of BRICS. Right now the U.S. (by world standards) is spectacularly successful. Russia is mired in war, China's economy has gone flat, the EU lags far behind us economically, and Brazil, as they say, will always have a bright future. India is definitely an area for growth and development but they would be better off hitching their fortunes to the West than to ally with the totalitarian states. BTW we could easily be energy independent by combining nuclear, renewables and fossil fuels and that would be a worthy policy goal IMHO.
The US is hardly to blame for Cuba's current woes. The embargo may hurt some but Cuba's economic collapse is due to the collapse of the USSR and the subsequent loss of sugar exports, then the collapse of Venezuela and its cheap oil deliveries. Plus the departure of the middle class and ongoing depopulation. Communism = misery.