Because hospitals operate with minimal spare capacity. Any epidemic wave will overwhelm the system. That being said, hospitals are not overwhelmed. There may be

Because hospitals operate with minimal spare capacity. Any epidemic wave will overwhelm the system. That being said, hospitals are not overwhelmed. There may be a handful of hot areas where that is marginally true, but generally speaking the vast majority of the country is doing just fine. I just threw a dart at Iowa: 69% beds occupancy, 10% covid. This is not what "overwhelmed" looks like. https://coronavirus.jhu.edu/region/us/iowa https://coronavirus.jhu.edu/region/us/iowa