Luke in ROTJ puts down his lightsaber to face the emperor - the darkest man in the universe.
Luke in TLJ takes out his lightsaber and considers murdering his nephew in his sleep because he MAY turn to the dark side.
sounds like the same dude to me.
You’re missing the key context in ROTJ — Luke almost considers killing Vader which would complete his turn to the darkness.
Yes and likewise killing your nephew in his sleep would turn you to the darkside. That is why it makes no sense that he would considering doing it.
It’s the old “is it better to kill one person to save countless lives?” argument…so how would it not make sense for him to even consider it?
His mistake was not in the consideration, but in drawing and igniting his lightsaber. We still don’t know what happened to that one.