The problem isn't that you want to preserve an inefficient business model. A company with a monopoly like the one Amazon has, can afford to take small businesse

The problem isn't that you want to preserve an inefficient business model. A company with a monopoly like the one Amazon has, can afford to take small businesses out of the market by operating at a loss. Once the small businesses are out of the market, they can increase prices possibly above the original price level the small businesses used to offer. Without competition, smaller incumbents won't succeed. Monopolies stifle innovation. New incumbents won't have a chance.