As of 2019, the USA population was 328.2 million men, women, and children.
Herd immunity by definition is 60 percent of the population of a country has sustainable immunity.
To begin, no one can say for sure that people immune today with antibiotics against SARS-CoV-2 will maintain that immunity for a sustained period of time. There have been cases of reinfection after initial infection, too.
196,920,000 Americans with sustained immunity are needed according to 2019 figures for herd immunity. There aren't even that many in the global community, yet alone the USA.
Currently, there are 4,205,389 confirmed cases in the USA.
THE HOSPITAL CAPACITY IN THE USA WILL NEVER ACCOMMODATE ANOTHER 192,000,000 PEOPLE THAT HAVE CONTRACTED COVID-19.
The USA needs a nationwide general strike for 16 days to end this gross malpractice of governance.