Arabs and other Muslims generally agreed that Saddam Hussein might be a bloody tyrant, but, paralleling FDR's thinking, "he is our bloody tyrant." In their view, the invasion was a family affair to be settled within the family and those who intervened in the name of some grand theory of international justice were doing so to protect their own selfish interests and to maintain Arab subordination to the west.
As for the third Official Reason: exposing Western Hypocrisy - how much more exposed can they be? Which decent human being on earth harbors any illusions about it? These are people whose histories are spongy with the blood of others. Colonialism, apartheid, slavery, ethnic cleansing, germ warfare, chemical weapons - they virtually invented it all.