This is too often quoted pure BS. Anyone who has seen the crowded and squalid slum conditions that most Latin Americans and ME/Africans live in know that social distancing doesnt exits and diseases spread like wildfire. I refuse to believe that we are the leading nation in deaths. Other nations dont test, and we are oversampling/double and triple counting. And its just a Flu.
The US has so much more obesity than found in crowded and squalid slums in the rest of the world. So the virus may transmit there (and I doubt that anyway as slums are more “outdoor” and its 20x harder to transmit it outside). Obesity seems to be the #1 risk factor for covid death after age.
Therefore the oldest and fattest nations would seem at risk for more deaths. . .