OK gang, we're gonna go over this one more time.
Yoda and Obi Wan are the true villians of the saga and not the Empire. Now before any of you new kids jump on my back, allow me to explain.
See Yoda and Obi Wan never wanted Anakin trained. It was Qui-Gon who sensed that he was the Jedi of the prophecy and as such could bring balance to the force. Yoda on the other hand also sensed this but feared that balancing the force wasn't exactly a good thing.
Cause it was the Jedi who had become corrupt with power to the point that they held themselves above the common folk. They were elitist and as such lost touch with the light side of the force.
So Qui-Gon dies and Obi-Wan is forced to promise his dying master that he will carry thru with Anakin's training. Yoda doesn't like this but as such goes along with it to keep an eye on Anakin.
Now we're missing some facts here but suffice it to say Obi-Wan the Cosmic Fuck-Up screws up the training and Anakin turns to the dark side. Conventional wisdom follows that one of two things will occur that drives Anakin over the edge.
Scenario 1: The Jedi prevent him from saving his mother and as a result she's killed.
Scenario 2: The Jedi lie to him for some reason about Padme.
Now internet gossip has mentioned both of these events as happening depending on where you get your info. The line I hear is that the Jedi are getting their collective asses kicked and Obi-Wan tells Anakin that Padme has been killed in a vain attempt for him not to go try to rescue her. But as we don't quite know what will happen, I'm not about to speculate beyond this point.
But for whatever reason, Anakin becomes Vader and begins destroying the Jedi. Yoda and Obi-Wan (who maybe a clone) escape with Anakin's children who they separate to keep them "safe."
Obi-Wan stays on Tatooine to monitor Luke's development. Luke grows up and when he becomes of age, Obi-Wan twists the truth around telling him that Vader killed his father. Also notice how Obi-Wan isn't too upset when Luke's Aunt and Uncle - who may or may not be his brother - are killed.
But Obi-Wan f**ks up as usual and gets into a duel with Vader that he can't win. Seeing Luke, Obi-Wan smirks and lets Vader cut him down in front of Luke cementing the fact that Vader is evil. Why does he do this?
Cause Yoda and Obi-Wan's plan all along was to have Anakin's son erase their mistake and kill Anakin.
So Luke goes to see Yoda who warns him not to face Vader as he is not ready and that if he honors his friends he should let them die. Now excuse me, but doesn't Yoda know that Leia is his sister? So what he basically is doing is sacrificing Leia in an attempt to continue to twist Luke's mind to the point that he won't "buy into" any of Vader's "lies."
Cause in their minds, what they tell him is true. From a certain point of view.
Luke, strong as his father was, rebuffs Yoda and Obi-Wan's warning and goes to help his friends - which let's face it is the heroic and honorable thing to do. Then not five minutes after they were willing to sacrifice her life, they say basically 'Oh well, guess we could always get Leia.'
So Luke faces Vader and learns the truth. Later on he goes back to Yoda and Obi-Wan who tell him that 'Oh, by the way Luke. To become a Jedi you need to face Vader.'
Luke: But I can't kill my own father!
Obi-Wan: Then the Empire has already won.
So for the record, Obi-Wan basically says that if Luke wants to become a true Jedi that he needs to kill Darth Vader.
And I though Jedi's weren't supposed to act in anger and that revenge wasn't a thing a Jedi knows?
Well in the greatest justice I've ever seen in a movie, Anakin does exactly what Qui-Gon had forseen.
1. Anakin decimated the Jedi order which was corrupt and far too large in number.
2. Vader killed The Emperor who had also become corrupt and far too powerful.
Luke's destiny was to redeem his father, pure and simple. And it wasn't until Vader pushed him to the dark side that Anakin Skywalker was reborn.
And afterwards Luke was a Jedi like his father before him.
As far as Palpy goes, all he wanted was absolute power. And actually if you think about it, things actually worked better when once the Empire took over.
The only people we ever saw the Stormtroopers getting medieval on were the rebels who were basically terrorists.
Course this could have just been a huge oversite on Lucas' part...
