It doesn't really matter anyway, I already admitted that countries like Germany and Netherlands did have fewer deaths with modest lockdowns. These are samples in favor of a lockdown.
However, there are also countries like France, Spain and UK that had the strictest lockdown, yet they had higher death rates. Those hint at strict lockdowns being no more effective than modest lockdowns when compared against Germany, or even being completely inneffective when compared against Sweden.
There is no clear correlation between having a lockdown and having fewer deaths, so you can't claim that Sweden would've had a far different result with a lockdown. That's just an unknown, there are many more factors at play.
Also, the costs aren't just economic. Lockdowns are a severe restriction of civil rights. There's a great deal of suffering caused by lockdowns. They can destroy livelihoods. They limit medical care. There's more domestic violence, more suicides, more depression.