You just don't give up. The US was/is always destined to have higher mortality rates than peer countries. Doesn't really matter what you do, unless you cut out pepsi, french fries, donuts, joo joo beans, etc.
I admire (kinda) your desire to 100% protect everyone walking the streets in this country. Unfortunately that wasn't never going to be an achievable end state. What we should have done (as most smart health experts have been advocating since this all began) was to focus on the most vulnerable. People
A nuanced approach to public health was thrown out the window years ago, with plenty of blame to go around.