Cool comparison, but ultimately wrong
Consider this: A powerful politician craves ever more power and realizes that he cannot gain full reign while the just and balanced laws of the republic curb his abilities. So he realizes the only way to gain full control is to prod a tense political situation into a full blown war. Under the threat of war he would be able to act freely, using the fear of his populace to throw away freedom after freedom.
George W. Bush? Maybe. Emperor Palpatine? Yes.
The Daily Ghost gives George Lucas too much credit for an ability to craft subtle commentary, first of all, and second of all ignores the fact that the execrable Phantom Menace and Attack of the Clones were written well before the 2000 elections, the 2002 midterms, and the attempt by Bush to be a bigger man than his father. They cannot therefore be a commentary of any kind on current events.
Still, it's neat thinking. It's kind of like the "Woman gives birth to JC, savior of the human race" summary that you can apply to "The Terminator."