In brief, the universality of the politics-is-the-mindkiller phenomena.

People seem universally drawn to status debates and politics. This is evidence against uniform fundamental values?

If some ideologies or political topics were more likely to reach agreement than others, that would be evidence that some terminal value differences are not "fundamental".

How does this work? Can you expand?

On more thot, I retract the "people don't 'fundamentally' disagree" thing. Seems awfully strong now, especially when a good chunk of who we are is memetic and not just genetic. Also, 'fundamentally' is a confused concept among humans.

Still, I hold that people leap to "fundamental value differences" as an explanation far too easily. Seems too convenient (It's ok, a peaceful solution will never work and we have to kill them because Fundamental Value Differences) and comes to mind too easily for self-serving and confused reasons (reifying an unproductive argument as a Fundamental Value DIfference is a nice comfortable solution that has no reason to be correct)