I partially agree with your analysis, though I think our system is definitely better, just by reasoning about human nature. An oligarchy is efficient but can b

I partially agree with your analysis, though I think our system is definitely better, just by reasoning about human nature. An oligarchy is efficient but can be oppressive. Also, the ancient Greeks figured that an oligarchy naturally evolved into an even more efficient government, a dictatorship (see Xi's purges of rivals, and preparing the stage to retain power indefinitely). And a dictatorship eventually always ends up in the hands of an incapable, uncaring, or downright cruel person, leading to misery for everyone. My understanding is that was why we put so many checks and balances in the US government, we'd rather do things our own complicated way than submit to a tyrant. The only problem would be if the US system becomes so weak that it was vulnerable to being conquered by a tyrannical system that was at the height of its power.