So more immune people = a greater jump for the virus to make to vulnerable people.
Or more immune people = more people back at work quickly = less money the gov need to fork out.
It's surely a bit of both. And both are vitally important. If you have a large percentage of the population with some immunity then you can instead focus efforts and resources into protecting those who are the most vulnerable.
Like I've said, the world can't keep stopping if another wave hits in 3-4 months - that will kill more people in the long run (worldwide) than this virus will. Far more.
That's not to say we shouldn't be doing everything we can now - we should be. But, I think you used this term the other day, it's not just that 'life is more complicated' for people. It's people's livelihoods completely wiped out (I'm not talking about me here - there's people with families who now get nothing at all), and the governments worldwide will be in even more debt. That's not good for anyone either. People will lose homes, businesses, everything they have and any form of rebuilding it too because the economy just won't be there.
People can say 'well health is the most important thing' but it's all the same. People aren't going to get health benefits from an economic crash. And that means less funding for health services etc.
That's just me saying it how I see it ^