But, is there really anyone who thought Saddam was a good guy? He was very obviously a brutal dictator. So, at the very least there's one fewer of those around.
Sure, WMD turned out to be a total fabrication and the Iraq War ended up being a misguided attempt at democracy building.
But saying that it shows America's inherent evil nature is very odd from my point of view. Even if the only outcome (as it seems to be) is getting rid of a dictator, that seems like a good thing. Though, you could argue the cost doesn't seem to have been worth it looking back now.
I guess I'm failing to imagine how it could possibly be in the evil bucket and not just neutral or good.