First off, the vast majority of those cases are either false positives or totally asymptomatic. Never treated, let alone hospitalized or in ICU. Second off, every real case with real antibodies is one person closer to herd immunity - which means the virus simply has a hard time hopping around the population because there aren't enough susceptible hosts. It has plainly happened in many other countries and infection severity has gone down as the doctors have learned to handle the cases better.
Allow me to illustrate a simple example of "most people don't think like this." I've been reading William M. Briggs - Statistician to the Stars! as he talks about the pandemic. He presents this plot of "excess deaths" by year, data from the US CDC. I've marked up the plot to point out some features.
The plot has a periodicity to it, so that it's not a relatively straight line. The periodicity marks the winter and flu season. It's easy to see there are bad flu years, like 2018, and easy years like '16 or last year. They tend to alternate, but not strictly. So superimposed on a background of about 52,000 deaths per week (7500/day) you can see a slight upward trend and modulation based on severity of the season. The observation is that bad years tend to alternate with better years. One of the mechanisms is that the flu and its complications tends to take out sicker people, especially elderly. If the flu season is milder, like 2019, people that would have died to a stronger flu are now a year older and (on the average) more fragile. People that might have died in '19 are then more likely to be killed by the flu (or other things) this year. I think that partially explains why the death toll from Covid was so high last spring; the pool of people in nursing homes and other facilities was more frail from being a year older than during last year's flu season, then the idiot governors of those northern states shoved Covid patients into the nursing homes. I don't think it works the other way; that people who survive a bad flu year are less likely to be taken out the next year.
Briggs also made the effort to extract an estimate for flu and pneumonia deaths, toward the bottom on the scale, and then ends that plot with the "with" and "from" Covid deaths. You can see the worst of it was back around late March, early April, and the easily predicted transition from Northern Temperate profile to more like Northern Tropical peak around June (see Hope-Simpson plot here). We're transitioning to the Northern Temperate winter profile again, which will be a third peak, but since the '20 season was particularly bad, the pool of people likely to die coupled with the advances in treatment should keep the death toll lower than last spring's peak.
Another interesting plot he puts up is the deaths by ages from all causes along with the "with" and "from" Covid from CDC data as well.
Briggs makes a big point of pointing out how so many people are worried about this with no justification.
Young (under 65) healthy people are not being killed by the doom—or much of anything else. Yet it is this demographic most panicked and most influential. We all have more to worry about with flu. That is, we usually do. But there is a problem with the flu: it seems to have disappeared, an impossibility.I should add that the people he talks about worrying the most, saying "mask me, lock me inside" don't seem numerate enough to understand data. Everything's an anecdote, "my sister's friend's yard guy is only 40 and he got Covid and died!" (never mentioning or even realizing he was the only person within 200 miles like that).
He goes on to show another plot of CDC data showing a mysterious absence of the flu. The flu disappeared after week 14 of '20 and in October, when it starts showing up again, the CDC shows nothing. They've stopped testing for it. I feel bad about taking more of his data, so go read.
In this day when the most innocuous thing requires a disclaimer, I should give one. Every death is a tragedy to some family, and many people will think it's heartless to talk about deaths as if they're just numbers. Further, the one thing we all know is that some day we will all die. I don't mean to sound heartless, I just think the best way to understand what's going on is to look at the numbers and understand as much as humanly possible. Or more.