There have been a lot of warm and fuzzy self-congratulations since Tuesday's election about how California voters and candidates -- particularly Arnold Schwarzenegger -- have met in the middle of the political spectrum. The cheery theory is that when the guv and the plucky guys and gals who make up the Legislature return to the front lines in January, they'll all sip cocoa together and make toasts to the wonders of "centrism" and lead the state to new heights. This theory seems to be based on three things: 1. Schwarzenegger was easily re-elected as governor, even though he's a Reep...