Add these to your overflowing conspiracy and twisted theories, although I'm thinking these more truth to these than is known:
a) The peace protests are being organized and funded by terrorist friendly organizations. Think about that. These human shields were given thousands of dollars way before troops started landing and were in Bagdad up to two months ago. Of course, I wouldn't call them "peace" protests with their tactics of throwing up on government buildings, distrupting traffic, trying to stall commerce and cripple whole cities.
b) Hollywood is so vocally against the war because most of Hollywood, particularly producers, directors, etc, is Jewish and they don't want Israel to get bombed. It's possible.