Anakin’s story shouldn’t have been a soap opera. It should have been more like Macbeth. He becomes corrupted by power. Instead you can tell Lucas has a perverse understanding of the world, or came to develop one, since he made Anakin’s perceived feebleness his weakness, whereas he should have been undone by his own strength.
The entire prequel trilogy is whiny and childish because it represents a whiny and childish view of the world: that even bad people are good, and there are plenty of excuses that justify or explain their actions. And then comes the Saga, where all you have to do is save your son’s life and you’re suddenly forgiven for all of your sins.
The prequels are an abomination because they are nothing more than a 3-movie long excuse for why a really evil person wasn’t so bad after all.
Are you lumping ROTJ int the PT? Because otherwise, your view of the character does not fit.