We all share a responsibility to behave like adults. Is this really the way to deal with some people being quick to anger? What's the difference between people debating over the best political theory vs, say, unproven quantum theory, or lay speculation on economics, or on history, or on aesthetics, or on evolutionary post hoc rationalization, or on predictions of the future?
And as per the US-centrism aspect, personally, I can't see how muting political debate will shift the average discussion away from US-centric politics, in general..