Did Darth Vader Earn Redemption?

One of the bigger controversies surrounding the special edition changes is replacing Sebastian Shaw with Hayden Christensen in Return of the Jedi. Now while I agree it's wrong to make the change because that's really offensive to Shaw's memory and ruins that little moment of seeing Anakin where he would be as a Jedi now. But with that being said, i can understand Lucas's logic behind changing it. George Lucas claimed to have made the change because Young Anakin was the last time he was good, which is not technically true because the last time he was good was when he saved Luke. But I just think he mispoke, what he meant to say was that it was the last time Anakin was a good person. Let me explain.

Really the final film is a redemption story for Vader, amongst many things. But really, does Vader get redeemed in the end? Keep in mind this is the man that executed dozens of Jedi, including children, attacked and killed even his own men and attempted to kill his own children and blew up an entire planet without so much as a whim. After so many evil deeds over the years, why is it that apparently saving his son from being killed suddenly redeems him from all of his evil deeds? Allow me to quote the great Christopher Eccleston from Doctor Who "You let one go, but that's nothing new. Every now and then, a little victim's spared. Because she smiled, because he's got freckles, because they begged. And that's how you live with yourself. That's how you slaughter millions. Because once in a while, on a whim, if the wind's in the right direction, you happen to be kind."

So really the right answer should be, Anakin shouldn't have a force ghost there to begin with, because Anakin didn't die that night, Vader did, saving one life does not negate years of torture and cruelty...Wow that got dark,

-Danny