Claiming that the disease affects one group more than another is a ridiculous non-point... partially because it's unreliable, since people of all ages can and do die of this, and partially because the spread of infection is the issue, not just individuals.
Basically, the people making these arguments think you can just set up a "peeing section" in a pool. It doesn't work.
The reason we're doing these lockdowns is to protect our front-line troops in this battle, such as medical workers, grocery store clerks, delivery people, etc. -- the people who are keeping our supply lines open and aid those who are sick. If the people who are keeping supply lines open get taken out through illness, then you're going to see real problems, and a much greater spread. It's like sending front-line troops out without air cover... you just don't fucking do that if you want to win battles. We're keeping them safe so they can keep the rest of us safe and supplied.
The vulnerable also need supplies. They can't just "isolate" completely. And it's not like those vulnerable people aren't important, either. It's not an acceptable loss to kill off my mom so somebody can get their nails done.
We all have to take risks, yeah, but not unnecessary ones, or selfish ones. I volunteered to go back to work because somebody had to be here to keep things running, and I'd rather it be me than some of my co-workers, a lot of whom are older or have kids. I'm also doing this to keep the place operating so they'll also have jobs to come back to. We've done it smartly, with just a few of us in the building and limited exposure to other people. We're still having to deal with mail coming in and such, but I'm far less worried about catching this thing from some surface than I am from some person. I'm staying cognizant of the situation, washing my hands a lot, etc. But, it's a risk. I'm cough-prone in general (frickin' sinuses and allergies) so I dunno what this shit would do to me, but, fuck it. Somebody's gotta be here.
But that's to protect other people... not just wanting your fucking hair done or whatever. You can't just open things willy-nilly and just figure, "Oh well, a bunch of old people will die... gotta break some eggs to have a nail-salon omlette!" Fuck that shit. Your ass can wait to re-open the water-slide or whatever. Making sure people have their groceries and medicine and keep the water and lights on is more important than your creature comforts.
The economy will come back eventually, because the same goods and services that were wanted before will be wanted after. I had a lot more confidence in that before I learned that Trump is listening to Art Laffer, who's about the worst person in the world to be listening to when it comes to the economy. He's the "Laffer curve" asshole, which is better known as "trickle-down economics," something that's been proven again and again and again not to fucking work. Soak-up economics works. When rich people get more money, they just invest it and it's unproductive to anyone except them. If you give more money to the poor, though, they spend it. And it ends up helping the rich, too, because what they're spending it on are the goods and services that the richer people are running. But, that requires just a little more patience to work, and the rich don't want the poor to have more money, anyway -- it makes them harder to control. So, they're going to go back to the ol' trickle-down, let-them-eat-crumbs-while-we-eat-cake garbage. If Trump listens to that bastard, then I'm not quite as sure the economy will recover after all. If he'd just leave things be, incentivize businesses to re-open by having the banks give out a lot of low-interest business loans, then it'd bounce back. But, doesn't look like that'll be the plan.
By opening things back too early, you'll (A) create more dire situations because now, instead of getting unemployment, people will be at jobs where there aren't many customers willing to show up. Sure, you can re-open your restaurant, but with people still too afraid (for good reason, since we're not testing, and since assholes with guns and a headful of QAnon conspiracy theories like our resident piece-of-shit troll up there are trying to claim it's all a "hoax" anyway) to go in there, you're gonna founder. And (B), there'll be a second wave of this, and it'll hit a weaker situation. Ever been in a fight? They seldom end at one punch. The first punch just weakens you enough for the subsequent ones. A false-start is going to be devastating, but too many states are trying to protect Trump more than they are their own people. Hell, even fucking Tater-tot, our governor, keeps wobbling on his re-open date. He's desperate to do Trump's bidding, but he sees, clearly, that the state's situation is getting worse. Tater-tot's a low-watt asshole who gets by on saying "Jesus" a lot and playing to people's religion... he doesn't know anything about his actual job. And that's starting to scare the hell out of him. He's a dumb guy, in a very bad place for a dumb guy. So our state, essentially, doesn't really have a leader, because the country doesn't really have a leader and that's who Tater keeps looking toward.
I know people are going to try to wrangle all kinds of dimwit's-idea-of-intellectual wanking horseshit because they're desperate to protect the bungling president from responsibility for a situation he fucked up badly, but, it's clearly just more of the usual crapspew coming from stupid people who'll always try to excuse everything he does because they're too personally weak to admit they made a mistake when they voted for the sonofabitch. You can try to explain-away and theorize all you want, but reality exists no matter how in-denial ya wanna be about it. Around half the country's turned into this weird cult that exists to protect one childish old fool's vanity and keep him from having to confront his daddy-issues, and facing their own gullibility for having fallen for his con-job, but the price of that's gotten too high.