At this rate, Sweden will take years until they "have gone through its population".
"Assuming we'll all contract COVID-19 anyway, eventually" is not a reasonable assumption - it was the worst case scenario that the world has avoided and (as it seems) will continue to avoid. It's reasonable to expect that if we solve this issue through a vaccine in 2021, then by that time perhaps 10% of the world's population will have contracted COVID-19 and almost everyone else will not. And the expected difference between Sweden and France is going to be that by the time that we have a solution, one of them will have burned through more of their population for no good reason.
"Assuming we'll all contract COVID-19 anyway, eventually" is not a reasonable assumption - it was the worst case scenario that the world has avoided and (as it seems) will continue to avoid. It's reasonable to expect that if we solve this issue through a vaccine in 2021, then by that time perhaps 10% of the world's population will have contracted COVID-19 and almost everyone else will not. And the expected difference between Sweden and France is going to be that by the time that we have a solution, one of them will have burned through more of their population for no good reason.