I study at a small campus, that only has grad students of technical majors, more than of whom are international students. There's basically no political or societal discourse on campus. Feels good. I actually get much more exposure to politics via LW meet-ups, and most of the political discourse I interact with comes from local EGL community and their facebook feeds. And reddit, of course. But back on topic, our campus seems to operate on implicit politeness and tolerance principles, which aren't really voiced by anyone.