The problem is all George Lucas... the man cannot write characters to save his life... the Trade Federation "Japanese" people and Jar Jar are the best examples of this... with Jar Jar, he offered us just a depthless shell of a comic relief character that had the most annoying voice ever heard. The Trade Federation Japanese were an insult. He then tried to even further typical stereotypes with the diner owner alien, and Watoo.
The man simply cannot write good and deep characters. Not only that, he cannot write well in general... he has no sense of dramatic pacing. To illustrate the point, take the battle in Episode II in the arena...
Here we have this epic battle going on, and the very second we get caught up in all of it, George Lucas ruins everything by showing us some RETARDED cutesy-ass shit like C3P0's head being welded onto a battle droid, and having him spout some babble about the situation, only to go back to the battle, to only AGAIN ruin it, by having R2D2 replace C3P0's head again, while all around them, Jedi and others are supposedly being slaughtered. I cannot STAND that kind of crap, and IMO, it's all George's fault... he's lost his touch... his characters are as 2D as the medium which created them.