Because, contrary to the "spin" by some on our side, it doesn't HAVE a "99 percent plus" recovery rate.
Here in MI, the mortality rate is 2.15% (17,471 deaths divided by 812,000 confirmed positive cases). And it's about 1.8% nationally, to-date. Yeah, you can play all sorts of games (like, assume there are more cases than confirmed to increase the denominator, etc), but for the sake of argument, this is deaths attributed to COVID divided by "confirmed" cases.
But that's not the "only" thing to be worried about. A very large percentage of cases have symptoms (often serious) for months after "recovery". Some may never fully recover with permanent damage to lungs, heart, etc. Here's an article from Harvard Health on that. As the article states, 50-80% of people are reported (via published studies linked in the article) to still have COVID symptoms (sometimes severe) 3+ months after they no longer show as having COVID in their system. FWIW..
As does malaria, sometimes for years.
You don't see people shutting down the world over it.
I see you're in Michigan with Governor Whitless calling the shots. Good luck.
How common are lingering COVID symptoms?
Tens of thousands of people in the United States have lingering illness following COVID-19. In the US, we call them post-COVID “long haulers.” Currently, the condition they are suffering from is known as “long COVID,” although other names are being proposed.
So well under 100,000 people in the US have “long haul” issues. Out of 325 million people, that's nothing. When speaking of formal patients rather than merely COVID-19 positive, there is a world of difference.