Luke Skywalker in Return of the Jedi won't kill Darth Vader despite the evil he's done because he can sense the good in him. Luke Skywalker in The Last Jedi is seconds away from killing someone who's done nothing wrong because of the potential evil he could do if he turned to the dark side.
Luke Skywalker in Return of the Jedi won't kill Darth Vader despite the evil he's done because he can sense the good in him. Luke Skywalker in The Last Jedi is seconds away from killing someone who's done nothing wrong because of the potential evil he could do if he turned to the dark side.
Leia never should have been Luke’s sister. That “twist” was nonsensical.