Heh, yep. Exactly why I said that I blame the primaries. :-)
I'm not sure that its fair to say that the public is polarized just on the basis of a turnout of an election. A lot of the public was picking between 2 evils as they saw it.
If you take a look at the seven-point scale of party identification, you can see that a large part of the public is, in fact, toward the middle. Its at its highest numbers since around the 1950s.
The problem is that the candidates were extremely polarizing, which gives the appearence of polarization in the public. A good number of people thought that Bush was a deuche bag, and they wouldn't vote for him under any circumstance. And the same is true for Kerry.
The more polarized the candidates are, the more polarized the public will seem in an election. However, just because they seem polarized, doesn't mean that they actually ARE polarized, just that thats what the choices were.