The thing is that Amazon is so big and has so many other profitable lines of business that, if they want to, they can swallow losses on the one that happens to

The thing is that Amazon is so big and has so many other profitable lines of business that, if they want to, they can swallow losses on the one that happens to compete with you for as long as it takes to choke you out. You can try to keep up with that, but since you’re not as big and diversified as they are, you will inevitably fail. What to them is just a paper cut will be more than deep enough to bleed you white. (They’ll raise the prices once they’ve driven out enough competition to assume a dominant position in the sector, of course, but that will come too late to do you any good.)