You can't play "devil's advocate" without at least allowing a response to what you have said. The "devil's advocate" position of just let the at-risk population die is a position of encouraging genocide. If you're going to point out that it's a possibility, I'm going to point out that it's a horrific one.
The Devil's advocate part was that IF 6% die, because that's a pretty aggressive number, not who gets to live or die being decided by economic factors. Sorry... Poor choice of words given the prior conversation and I understand where you're coming from.
I'm offering the factual statement that the elderly don't engage in as much consumer spending as younger generations, and if the 6% comes from primarily the elderly (not that I'm lobbying for that, because I'm not) then the economic impact may not be as severe as you suggested. That's all I was getting at.