Or, it could be that Covid is being subject to natural selection/mutating. Threatening to kill its host, so the host does everything it can to defeat it, is not an optimal strategy. Far better to not kill the host/cause no symptoms, such that the host takes no action against it. Then it can propogate widely.
Polio, smallpox, measles, mumps, pertussis... none of these cared about a strategy like that. The virus does what it does. We have to do what we can to beat it. It’s always been that way; we just didn’t understand it until the past hundred years.
That’s ‘natural’ behavior alright.
Don’t think we’re seeing much of It, yet
Most of the US just hadn’t been infected. So now it’s getting infected.
Moref migrant farm/food workers in these areas to contract it too. Sad to say but those jobs are dangerous.