The last sentence is just not true. More doomed would be to invest a lot in infrastructure and economies of scale and try to beat Amazon at their own game. So

The last sentence is just not true. More doomed would be to invest a lot in infrastructure and economies of scale and try to beat Amazon at their own game. So don't do that, open a small convenience store instead. Where else are all those retail jobs coming from? Not a rhetorical question, I really don't know.