You fail to mention the horrific mess and aftermath left behind by empires. Countries with half dissolved cultures, hatred among neighbors, local elites trying

You fail to mention the horrific mess and aftermath left behind by empires. Countries with half dissolved cultures, hatred among neighbors, local elites trying to emulate and even outdo the imperialist horror and create new ones. Examples today: balcan, Iraq. Hyper imperialist emulators include imperial Japan, nazi Germany and today's China (modeled after the British Empire). The loss of complexity , when a hyper centralized system collapses and unravels, or in the Roman case the old empires tendrils are used to inject a new cultural empire with worser effects.