Absent evidence that a new respiratory virus that spreads through droplets is in some way different from all those past ones in a way that would make already known ways of dealing with them not applicable, you shouldn't really need to stop and do randomized trials on those past methods applied to the new virus before you put them into effect.
The entire pandemic has been politicized, science be damned when it doesn't conform to a political narrative.
Roughly 10% of those infected require hospitalization, and you can't just put anywhere close to 10%, or even 1%, of the population in the hospital at any given time. Those resources simply don't exist. It also affects IFR of anything else that requires a hospital.
If I get severely sick with COVID-19 (or literally anything else) where I live at the moment, I won't get a normal healthcare access. I'll need to get airlifted elsewhere. We're at 120% ICU occupation rate. Most of the deaths here are happening during transfers to other areas.
It's seriously concerning that we have to repeat this after a year.