If you sentence everyone over a certain age to death, some of them are likely to decide they have nothing to lose.

They may not be able to compel anyone to treat them, but they can take a few doctors with them out of spite to make sure the rest of us are as screwed as they are.

Oh man. You’re telling everyone over 65, “go fuck yourself, you paid taxes and worked hard to build this country, we don’t care, let this virus kill you”. Some may agree to it, but I’m pretty sure this will cause a lot of havoc on the streets. People killing until they get treated.

Also this virus is a bell curve not a cutoff threshold. It has killed many young people. If you let it run wild , it can even come for you.

The common flu has been us for decades. What if COVID-19 became like the flu. A seasonal thing that evolves a bit every year. Soon there is a time bomb strain that kills 10% of the population but only kicks in after a month.

Something like that could wipe off a billion people from the planet. The only planet we know that can sustain intelligent life.