I can agree in theory, but not in practice. Yes, "it provides a framework in which inevitable sets of partisans can co-exist in peace", I'm with you, but today's partisan ideologues are nothing more than narcissistic liars with absolutely no interest in co-existing in peace. They have to be honest brokers, serious contributors to the process and they are not. It's absolutely impossible to take anything a partisan ideologue says at face value -- how can any cooperation or progress come from that?
And we're seeing the results. Decay. Until some brave leaders arrive and move politics away from this behavior, the decay will surely continue.
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OK but every society has had its share of narcissistic liars. The Romans bred some choice examples.
How are your brave leaders to solve this problem? Have a Supreme Leader, like Iran has, who decides who should be allowed to be a candidate? Self declared non-partisan centrists don't win many votes in any country.
No, leaders, plural. This is such a mess that it will take multiple people, probably from multiple industries, to lead the way out of it.
Further, I agree that centrists can't very effectively "lead" either party. But then that assumes that partisans are simply incapable of being honest brokers. Admittedly, I have my doubts, but I don't think that partisanship and fundamental honesty have to be mutually exclusive. And that's where we are.
The system is okay -- although there are changes I'd love to see -- it's the people operating it that are causing so much damage.
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I sympathise with much that you say. But how are these good people to be chosen and how are they to be put into authority? Only by abandoning that Constitution that Americans hold in almost religious awe.