You're correct, I can't know for sure. And it would not be 0% exactly, in 5 months. Maybe 1-2% would've died (my wild guess), the sickest succumbing to their other ailments and some other random deaths (accidents, etc.).
What evidence do you have that high risk people are running around laissez faire with no precautions, trying to get themselves killed, in order to make the country look bad? That seems to me what your implication is. And that is absurd.
Certainly the economy is harmed by enforcing social distancing or lockdowns. No one would deny that. Although, the S&P 500 has certainly bounced back.
Social unrest has nothing to do with covid19. It is a culture war, that is being waged in our streets.