But you didn't exclude China when you figured the USA's percentage of total world population. That's 4.25% of the world's population including China and all other countries that aren't tracking or reporting deaths due to the virus. So when you say we're "over represented" by percentage of deaths compared to percentage of global population, you're not comparing like data.

Remove China and the USA has 5.2 percent of the remaining population. That's just one country, and already we've reduced the perceived disparity by nearly ten percent. Remove all other countries that aren't reporting, and the disparity practically disappears.