They don’t kick out competitors though, merely open up their own stores. To me (the consumer), that seems fine.
In this analogy, that would mean you have a store inside the mall and right across the street. Amazon sees you are selling products cheaper across the street since rent across the street is way cheaper than inside the mall. Amazon then says either you charge the same price in the mall or you get kicked out. You could call Amazon's bluff but most sellers are not risking their seller accounts.