The US is currently just a third world country disguised as a rich country, just like a larger Argentina in the global economy.
The American economy is now driven by consecutive record deficits and debt, subsidies, protectionist policies and an inflated and completely aberrant services sector.
The only thing preventing a dollar crash and an Argentina-level hyperinflation crisis is China, Russia and other countries that in some cases artificially devalue their currencies to invest in independent supply chains at a low cost today in order to gain more competitiveness in the future when the US needs to reduce interest rates and the deficit to stabilize the trade balance, seeing the inevitable devaluation of the dollar with this irresponsibility in printing money to hide the problems of the declining and unsustainable US economy.
And life expectancy and infant mortality are bad because Americans live in an apartheid society with black and second-class citizens living in a violent and unsafe environment with high homicide rates and with health services unaffordable to a large part of the population.
This is not a consequence of the wealth or the risky choice of a free population, it is just the failure of the country, which has terrible policies, social inequality and a horrible distribution of wealth, taxes and monetary policy, just like in other Latin American countries. In fact, for Latin American countries this mess is more evident because they are smaller and less important for the global economy to absorb and alleviate them. However, with the growth and independence of other countries in the global economy, the importance of the US is expected to decrease every year and they will soon be equal to Argentina, because the economic and social policy is the same, and the consequences will be the same.