How do we know the higher per year mortality rate from poverty will exceed the lower death rate from reduced pollution, reduced car accidents, etc? It's not clear how these balance.

There are also industries growing, and industries that will be created. And some of the industries that may be permanently eliminated may be a net positive -- cruise lines are a complete blight.

I don't know what the net-net will look like, but it's important to push back on the assumption that economic downfall will be all negative in terms of lives lost.