There are 2 options; stay inside forever to protect people or let this virus cull vast swathes of the population in an horrific survival of the fittest scenario.
That’s about the size of it.
There are several countries doing the experiment to see how the second option works out, e.g. Brazil (and possibly soon the USA). Then, if the no immunity scenario turns out to be right, we’ll discover how much of a genetic element there is to whether you get it mild or severe.
Will those who got it mild first time continue to get it mild, so it’s an annoying thing like a cold which people get every now and then? Until you get old, or develop a comorbidity - but then, you have to die of something, don’t you?
Perhaps Covid will thin the herd of all the old, sick and fat people (particularly men), and then the human race will continue with the less susceptible people, but with a lower life expectancy because Covid finishes them off when they’re too old.
Or, we develop a vaccine, and most people have it, because they will have seen what happens to those who don’t.