The mortality rate of 2% for 327.2 million people is over 6.5 million.

[tandem5]

37. 2% is an approximation of the reported case mortality rate...

This loosely represents people that either self reported because they felt sick enough to go to the hospital or who were discovered via a screening process that makes no attempt to canvass an entire population. One can make the argument that the reported case mortality rate is semi proportional to the overall mortality rate which includes everyone who got sick including those that didn't report symptoms. This virtually unverifiable number can be orders of magnitude smaller than case mortality rate.

You have other factors including the effectiveness of transmission over a population which can vary due to such things as demographics, population density, and infrastructure which simply means only a percentage of the total population gets infected.

So crudely, it's some percent of ~2% that impacts some percent of an overall population.