isn't brute force the modus operandi of behemoths burning money to establish monopolies? as mentioned they are bigger than FedEX already. what will happen whe

isn't brute force the modus operandi of behemoths burning money to establish monopolies? as mentioned they are bigger than FedEX already. what will happen when the biggest ecommerce doesn't use FedEX, UPS, USPS anymore? what will happen when other sellers have trouble getting packages to customers because some delivery zones are dominated by Amazon and they become unprofitable routes for other couriers? why do you think Amazon launched the Buy with Prime button for third party sites?