Even if
only 70% of the population contracts the virus with 0.5% of those cases becoming fatal, it will be horrible. There are about 350 million people in the USA, so 70% of the population is 245 million. If just 0.5% of that 70% are fatalities, that is 1.225 million deaths. And that is just the direct hit. Medical resources, including physicians, nurses, lab techs, rooms, respirators, labs, imaging,
et al, will be diverted to handling these cases, and people suffering other ailments will not get necessary treatment in a timely manner. That concerns me as much as the coronavirus itself.
To put it in perspective, the CDC reports that the total US annual deaths in 2017 was 2.813 million people per
https://www.cdc.gov/nchs/fastats/deaths.htm So the disease would increase the death rate about 43% IF (big if) 70% of the population gets the coronavirus and 0.5% of those who have the virus perish from it. Let's hope the numbers are a lot lower.