If no country has ever achieved this, what's even the evidence that it's actually possible? There are some pretty fundamental reasons to think it wouldn't work, not least of which are asymptomatic, pre-symptomatic and barely symptomatic spread, and the fairly impressive R0 of this particular disease. If the person you're having dinner with doesn't have symptoms and you have a slight sniffle, how do you even know to get tested?
Also, how the amount of coronavirus testing the US is doing stacks up to other countries isn't an "particular opinion" - it's a fact, and it's a fact that pretty much the entire US press seems to have managed to misinform everyone about, including the fact check columns.
Thats what contact tracing is. Your dinner companion finds out they are sick two days later, and everyone they were in contact with gets found and tested.
The amount of testing the US is doing is indeed a fact, and it's widely reported in US press.
Also, how the amount of coronavirus testing the US is doing stacks up to other countries isn't an "particular opinion" - it's a fact, and it's a fact that pretty much the entire US press seems to have managed to misinform everyone about, including the fact check columns.