@Healthyandhappy
If we slow down the spread so that everybody gets it, but over a longer period of time, then many lives will be saved, compared to if we do not slow down the spread and everybody gets it at the same time.
The lives that will be saved are the lives of people who can survive, but only if they get hospital care.
That will be mostly older people, or people who already have an illness, but it will also include very large numbers of young, fit and healthy people.
It appears as though most people of all ages who get this will have mild disease and will get well on their own, and it seems that some people die regardless of how well cared for they are. However, there are potentially millions of people in that middle ground who can survive if, and only if, we can slow down the spread and reduce the "peak" number of people who get this any one time, so that each of them can get the best possible care.
This can only be accomplished through dramatic social distancing measures that we have never seen before. The good news, though, is that perhaps for the first time in history, we can use those measures, so we have a chance to reduce the death rate, if we all do our part.
See www.flattenthecurve.com/ for more details. Disclaimer: it's not my website, but I'm convinced that if we do what's on it, then we can save lives.