Re: Don't like the way you are framing this
It's not hindsight. Some of us were trying to say these things after the first couple of weeks. Once the panic wore off, and we put down the bottle of rum we looked at the stats and could see that really it was not 3-4% of people dying of all ages, it was closer to a tenth of that, and mostly older vulnerable people. People were not literally dropping dead in the streets in China (and putting their hands out just before they hit the ground). This means it's pretty clear those are the ones we should protect (if they want it). Personally if I was 86 and with serious health problems, I think I would choose to take my chances. Others might choose to lock themselves away for a couple of years. (until vaccine?). It should have been up to them, if they are competent to take that decision.
We were trying to say these things, but we were censored, suppressed, pilloried, shouted down and banned. I've had to leave Next Door, and LinkedIN because I was saying perfectly sensible things but got told to shut up.
Lockdowns were never on the pre-prepared plans. We should have stuck to the plan, but it seems that China did it. Italy did it, and then panic set in and almost everyone just caved in and did it too. It was probably the worst single policy error in modern times, and has caused massive amounts of damage. Seriously I could have done a much better job, because I'm the kind of person who tries to dispassionately look at the facts and do the best thing in a situation. However, I'd never make it as a politician because 1) It doesn't pay very well. 2) You have to go into London and 3) I tend to speak my mind, so wouldn't last very long. Apart from that, I'd probably have a crack at it, and make a better job than the clowns we have in charge.
If people like Alex Berenson and the authors of the Great Barrington Declaration, and a few hundred others has been allowed to say things openly then perhaps we'd have different outcomes now. I don't think we could have actually saved that many lives from the virus, we're just not that good at science or medicine yet. It's inevitable, and there's little you can do about it. We could have at least avoided the collateral damage to the economy, backlogs in care, children's mental health and education.
With masking you seem to be arguing that it's better to "do something", even if all the previous evidence suggests that it doesn't help. That's not science, it's politics. Better to be seen to look like you're doing something.