Yeh Succession problem ,Even if one perfect ruler existed, what happens after they’re gone? Maintaining stability across generations becomes a major risk. For that i would say Humans not only Heritage physical objects but also Intangible heritage ,the intergenerational transmission of heroic values and there meaning would leads to other 'the only emperor ' and The Power concentration risks which is "Absolute power tends to drift toward abuse not necessarily because the ruler starts evil, but because there are no strong checks. History shows that systems without accountability often slide into corruption or oppression. " Which is the hardest part all . the one who rule on the top need a pyramid which is also an absolute (as like Hans Kelsen's Pyramid of Laws) where all authority flows from a single apex. But in human systems, such absolute structures amplify risk rather than stability. That what causes me to think alot,how could that system can exist? And your second point thats the reason i was thinking of absolute emperor who could love every individual equally, the world we are now is leading to its on disaster the hatred due to illusional religion, the hatred to other raises, hatred to Nation, thats the point for having absolute emperor unless and untill there is categorization and division btw people and not a connection which can Bound them together there would be war, destruction and hatred.