I note that as a community we don't seem especially prone to strongly identifying with world or national politics in the patriotic tribal sense. That kind of politics is far closer to mere abstract theory. The real political infighting lesswrong is vulnerable to tends to be moral and local. (And vulnerable it is.)

I agree that there probably isn't that much tribal patriotism here, but there are probably a few posters whose minds are tainted by ideology (libertarianism, left-liberalism, environmentalism, maybe conservatism) (I don't consider my mind untainted by ideology), which can be equally polarizing.