I think that whole "polarized" nonsense is claptrap from the drive-by media. If people are "polarized" then someone can be blamed for being "polarizing". The fact that people didn't overwhelmingly go for one candidate over another says more for the candidates than it does about the people. There is a middle, but they make a choice just like everyone else. Reagan was probably the best at appealing to a broad spectrum of people, although Clinton was a good con man.
Well, I actually believe that many of those in the "Middle" are there because they aren't committed enough to fit the other categories. Call it the "mushy middle". I have a hard time with that, because I am the type that's either for or against, not a compromiser.