That's without expressing an opinion on the underlying politics.
Altough I believe that to be true during the Bush years as the anti-Bush types were very loud and crazy. Now that many more people are online and are able to spread opinion via Twitter/FB/youtube/etc, the divisiveness from activists has gotten louder. Joe Rogan also observes this in how he describes the 2 minute tv news media culture where 10 people are trying to shout over one another to get their point in, and how that is a sign of a dying medium (being replaced by internet, long form discussion, etc). This seems like further proof that the traditional media is more divisive more than ever...it's the last breaths of a dying medium. Don't think that's true? Just watch local tv news in SF Bay Area and compare to a smaller city outside of a major metro (blue) area.