Luke Skywalker is not Santa Claus.
He doesn’t have to be the larger-than-life legend that we’d made him out to be, and it would make sense that he still fights some element of the same personal struggles he had when he was younger.
Luke doesn’t just fight some element of the same personal struggles he had when he was younger. He has forsaken everyone and everything he once held dear, and for what? To have us go through Empire versus rebels again with Luke 2.0, who’s now going to really give us the final final victory.