You touch on something important. Beyond the fact that the term monopoly gets thrown at a company without any further qualification of such a statement, there'

You touch on something important. Beyond the fact that the term monopoly gets thrown at a company without any further qualification of such a statement, there's no real thought put into how the company is using said alleged monopoly power to raise prices on consumers or create barriers to entry in the market. Amazon's prices trend downward, constantly. Amazon is also itself a market facilitator, agnostic to which products sell, so long as they sell. High quality and low prices race to the top of customer ratings. Third parties sell on Amazon as well, providing a global market for local brick and mortar shops. Further, Amazon is by far not the only website selling things on the internet. The internet is pretty great at lowering barriers to entry.