Don't waste my vote: Radical center offers harsh advice for both partiesBy Bill BrozSpecial to The Times The pundits tell us that this year's presidential election promises to be the most polarized in decades. They assert that emotion for and against President Bush is running so high that voters' minds are mostly made up. We swing voters seem to be on the endangered species list here in 2004 and so, the conventional wisdom goes, are in a poor position to "swing" much of anything. Well, not so fast. Polarized the electorate may be, but the margins are razor-thin. If...