"EVERYONE IS GONNA DIE AHHHHHHHH!!!!!" is not a good basis on which to be making planetary policy.
It doesn't change the actual number of people killed by the virus, at all. That is to say, regardless of the shape of the curve, the area under the curve remains the same.
And economic depressions kill people too, in fact in far greater numbers than this virus has, yet. You don't seem to care about those lives either.
That's the problem with having a comfortable life. You don't see the consequences of your choices. I live in a place where I see people suffering and starving because they live hand to mouth and can no longer make the $2-$3 dollars a day it takes to keep them alive. They can't go out on the street to sell food. They can't make their few cents helping cars in and out of parking lots. They can't open their "shop" the size of a porta-potty in order to sell a few shirts. And when these conditions spread, crime and death spread with them. I've started to give away what food I can just to try to help whoever I can.
All the while, cozy HN commenters who earn $250,000 USD a year pontificating about whether we should shut off the entire planet for 18 months or more because it doesn't affect them one tiny little damn.
Nobody arguing for that point of view gives a shit about human life, they want control, plain and simple.
Indeed, asymptotic carriers (as well as healthy people that are going to become asymptotic carriers) following the political crackpot pseudoscience advice from WHO and end up not wearing masks do not harm only themselves but everyone around them as well.