@bold- Depends on your point of view.
Some people find his actions to be pretty easy to understand and logical, while he is viewed as a complex character.
As far as the Will of Fire part goes- it's funny that people correlate this so often with his character. Especially when he's never mentioned it himself, not has anyone mentioned him and the Will of Fire in the story. There's more to the Will of Fire than that and it does have a dark side. We never really go to hear his stance on it. We just know that Itachi was an individual who wanted peace, at least as much as was possible at the time.
He didn't only murder his family for the sake of village and peace. He did it also for his clan. It was the only way to help every side in the maximum possible in that circumstance.
It's not crazy given the context of the story to be honest. He's a ninja. We are reading a story about assassins.
No one can imagine it and if he sided with his clan, a war would go on for a while but the Uchiha would lose and be annihilated anyway. It's a fictional story at the end of the day. Those don't correlate to real life all that well.
I understand what you were trying to do with this thread (make a non-troll thread for an Uchiha character). It was a nice attempt and appreciated.