I'm not in US so what I see may be wrong but I think US spreads the risk across the whole population to avoid the damage of quarantine while favoring the richer people to some extent.
This is an interesting observation. Specifically - most things in the US do "favor the richer people" but this isn't really due to an intentional
coordinated action. It's an emergent phenomenon of many many influences. When you get past the hyperbole of the US leaders and corporate fat-cats "focusing only on the rich at the expense of the poor, and laughing with glee because they are getting away with stealing from the poor" you are left with reality, which is much closer to this:
The US is hyper-individualistic and is generally "pay your own way." This implicitly favors "the rich": if you have money, you can buy stuff. It's not so much "let's screw the poor people", the average mentality of 90% of the US population is just "why don't those people pay for it? Why don't they just work harder, stop wasting money on drugs, and buy the necessities they need?"
We just don't have a culture of "the community should have priority over the individual" - our culture is steeped in "do what makes
you feel good" (rather than "do what is good for the community"). Almost all tension in the US is the battle between this individualistic worldview and the movements to try and be more community focused. It's really interesting though because there are bifurcations in this - especially in "liberal" leaning philosophies. What I mean is there is a weird mix of "person first" like in gender identification and "community first" like in environmentalism and social programs.
This shows up in the US virus response attitudes - people in the US have a mental fitness function that is "yeah I don't see the benefit in sacrificing 90% of my income for an expected personal return of 5%. I also don't even see the benefit in sacrificing 10% of the entire country's economy for 1% of the population - even if that is 3 million people". For that's essentially what is being asked: "saving COVID lives should be done, no matter the cost!" is how it sounds, and most people are like "no man I don't want to pay that much." Where the ire comes in the US is when leaders say "sorry we know you don't agree with action X but you have to do it anyway." We just don't have a culture of deferring to leaders without question - we relish at least the ability to complain about it (while generally acquiescing most of the way).