LOL, shut up. This isn't earth!
The SW universe makes a distinct difference between good and evil. It doesn't hold a Boedhistic point of view. You are this or you are that. Anakin was a naughty boy, he did something against the jedi code.
PLUS, he suddenly began killing the jedi!! That must mean something!!!
Anakin is a good boy. He only exterminated the Jedi Knights, force choked his wife, slaughtered dozens of sand people, includig women and children, brutally murdered begging politicians and lopped off a Jedi master's arm.
I disagree. He killed the Jedi because he believed they where evil, and he had reason to. He thought he had no alternative.
The 'politicians' he killed where evil separatists, and they did all sorts of nasty stuff like attacking Naboo.
And the sand people? They are animistic terrorists of his home planet. They killed and tortured his mother for a sport, and did that to many other people. If I was him, I'd do the same. They where vermin. Just because the Jedi order say it's wrong doesn't mean it is.
He cut off Mace's arm because he didn't respect Palpatine's freedom, and Mace wanted to take justice into his own hands, which without Anakin getting to truly see how evil Darth Sideous is, it seems perfectly acceptable to disarm Mace.
The only thing I disagree with is Anakin choking Padme. But he must have been driven insane from the stress, although it's no excuse. To me, I have not seen any other evil. He did what he thought was right. Anything else?
How is it exactly a quick jump? He's already long before having emotional issues the first starting point was being taken from his mother, or you could probably go back further when he was a slave.
You then fast forward, his mother being tortured by Sand People and then dying in his arms, this just further making him into an emotional storm.
Then finally what did it is, was the visions of Padme dying.
His turning was already sown into him by all of this, the constant war and Palpatine's manipulation, the final nail in the coffin was cutting off Mace Windu's hand, helping kill a very respected Jedi Master. Further twisting his thoughts to that, Palpatine showed Anakin that the Jedi were corrupted and enemies of the Republic.
He wasn't doing mass murder in his point of view, what he was doing was quelling a Rebellion of Jedi before it even began, bringing peace and order to the galaxy and wiping away the corrupted Jedi and Republic.
This all just from the movies, you really don't even need to watch TCW as long as you put thought into the scenes at hand and then take into account the passage of time, take into account the characters around Anakin influencing his emotions, so on and so forth.
TCW just furthers add more material for Anakin's slow descend into the darkside.
So being prodding and showing signs of falling to the darkside throughout the movies don't show anything? I don't think it would take much else when Anakin at this point, was shown as being mentally ill.
As said that was the final nail in the coffin and it's not like he wasn't justified in disarming Windu. Taking from his point of view, he was witnessing a Jedi straight up murder the Chancellor of the Republic, thus confirming what Palpatine was saying that the Jedi were turning on the Republic.