One of the problems imo with this virus is that because it's really only a danger of older people, A LOT of younger people are basically like "lolz, just living life normally, if I get it who cares, I'll be fine. See in you in hell old people"
So unfortunately if like 1/4th or 1/3rd the population of the USA doesn't give a shit about precautions and containment, and are all vectors to get it and spread it, the USA is fucked. The country's motto of "fuck you, got mine" basically is dooming the country to get this thing.
In the east asian countries where people are more concerned about the whole and community over themselves it's a lot easier to contain. People will wear masks if they're sick generally and do their best to follow containment instructions.
Also given USA and young people's nihlistic indifference, I'm not even sure if the vaccine is gonna save USA. Normally in a situation like this, when the vaccine comes out, even if it's only like 70% effective because of mutations, if the majority of americans go and get vaccinated, the herd immunity should stop COVID19 in its tracks and it should just disappear.
But USA is gonna USA and if only like 20-50% of the population get the vaccine...we're not gonna have that herd immunity and you're stuck with it going around and hoping you get a strain that the vaccine is effective against.