The Clown Prince of Crime
Super Freak
It could be Luke sensed kylo was turning to the dark side and decided to kill him. Or, luke was the one turning evil and temporarily lost his mind, which pushed kylo away, though that doesn't explain why he sided with snoke, so that's a problem. I like the idea that Luke felt he himself was turning to the darkside, because then his self imposed exile would make sense to save the galaxy.
The "force" is like the ring in the LOTR. The best thing to do is not to use it, burn the books, and ignore it. Rey, Finn, and Poe should let the FO and the rebels kill each other.