Earlier quoted context omitted.
It not only could but it saves lives, I'm not disputing that. But the question is at what cost to the individual, the society, the economy and their future. What happens if the economy crashes? Is it reasonable and the price worth paying? We should be allowed to not only ask these questions but discuss them.
If you want to ask those questions, you also need to ask what's the alternative. What happens if we continue business as usual and 5% of the population dies in a couple months? What if the virus mutates and another 5% die in the next couple months after that? What if immunity only lasts for half a year, and we get a 5% death rate every year from now on? Is it reasonable and the price worth paying?
Where are you getting the 5% from? You're just adding the 5% on and on prior to "What if's" that don't sound plausible to me. Although if you did quote experts there I would like to know, that could change my view. To my current knowledge it is more and more looking like its fatality rate is sitting around 1%. People, especially older ones, die, we often supress that thought in the western culture. And many die, everyday. If the economy crashes many more will die most certainly.