That's exactly what happens. Diseases don't "want" to actually kill their hosts; it kills them too. If evolution was selecting for more dangerous variants over time, we'd all be long dead; multicellular life might not even be possible. But it's actually selecting for things that live in the host indefinitely and spread over long periods of time, which leave the host alive in order to do so.
In the long term, the coronavirus will very likely either be entirely eradicated by human action or become just another cold... but first you have to survive to see that long term.
This is also why the worst diseases you see are zoonoses, diseases that spread from other species. They are co-evolved (if you want the term for this, look up "coevolution") with their hosts, then they jump into us and do the things that they "think" will just lightly affect their hosts and let them spread, and we keel over dead because those are the wrong things.
In the long term, the coronavirus will very likely either be entirely eradicated by human action or become just another cold... but first you have to survive to see that long term.
This is also why the worst diseases you see are zoonoses, diseases that spread from other species. They are co-evolved (if you want the term for this, look up "coevolution") with their hosts, then they jump into us and do the things that they "think" will just lightly affect their hosts and let them spread, and we keel over dead because those are the wrong things.