You're convinced hard equals impossible. Which is definitely part of why the US is so incompetent when it comes to this (or healthcare in general). People don't care that we suck.
I just find that sad and horrifying.
Let's say you take NYC, where the cases have been tailing off, and you implement a massive contract tracing effort there. MASSIVE. Maybe it doesn't save the whole country. Maybe it doesn't even prevent inbound infections from spreading very well.
But it's also a hell of a lot of practice for the next time we need to accomplish something big.