I think your point specifically about Iraq is largely likely to be correct, but I have never been able to swallow this argument, which comes up just about every discussion of tyranny I see/hear.
A fundamental component of true tyranny is violence or an immediate threat of violence (as opposed to the somewhat more abstract monopoly on force that democratic governments have). At the risk of sounding trite: it's easy to call people complacent in the face of a tyrannical government when it isn't your family that will be the target of that violence. Resisting a strong and deeply rooted tyrannical government is not for the feint of heart or those with precious things to lose. To say those that don't give up the tenuous stability they have to attempt to foil the will of the government are complacent is dangerously close to shifting the blame on the victims of abuse.
I suppose it would be fair to say that in any tyrannical state that many are, in a way, resigned to their fate. For most people in that situation anything besides begrudging acceptance of the way things are is not far from suicide. In the case of the US I would wholeheartedly agree that apathy is a huge driving force behind our government taking power it should not. Implying that's how it works everywhere and every time seems very unfair.