13 hours ago, LifeGain said:He did not have to stop the whole First Order though. He just had to stop the monster he had created. If Luke were able to stop Kylo, the First Order would not have gone away (just like the Empire did not go away when Darth Vader died), but it would have lost an extremely valuable asset and it would have been easier for the Republic and the Resistance to defeat the First Order. Just think how crucial Kylo is to the First Order and how he is now in control of it. Kylo is conflicted throughout most of the movies and it was possible that Luke would have turned him. If Luke had been able to stop that....well then we would not have the Episode 8 that we do now lol.
And how, physically, would you stop Kylo? To kill him you've got to get to him. To turn him you've got to get through to him and I doubt the man that, in Kylo's view, tried to kill him in his sleep is really going to have much influence there.