I should have been clearer.

The Original Trilogy was not written, designed or made as being “always about the tragedy of Darth Vader”, as George later claimed what became his 6 main film Star Wars Saga story was about.

The reasons why, the details, or evidence, is in those threads. And in lots more on here.

Retcons, discrepancies, mental gymnastics, revisionism, making characters into liars to justify lack of coherent story, inconsistencies in the films (in the OT, the disconnects between the OT and PT, and in the PT), the need for Machete orders to keep plot to make sense or not be spoiled, and also Lucas’s many made up claims to try and justify the lack of cohesion, are all on such a scale that when watching the 6 films together it is not a coherent story.

To me anyway.