Actually as of the phantom menace that’s exactly how it works as force power is based off midaclorians.
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The books were canon until Disney that’s the whole point the idea isn’t something that Disney came up with it was Lucas films.
killing some one isn’t the only way to win a fight as we have seen in other fights when people are disarmed like with duku or palp in episode 3."Vader got beat by Luke" I hate this argument, cause you could clearly see that Vader wasn't trying to kill Luke. Like, at all. Otherwise, the fight would be over.
"Luke’s able to control black holes (Eu) and shake whole star destroys (canon) but in the movies the most he does is lift an xwing." This was during the beginning of his training, and we've seen nothing else afterwards in the films of his feats other than him defeating Vader. Luke in the canon (As well as Legends) is a badass that can destroy Star Destroyers, and quite possibly break even stars and planets. Him controlling black holes in the Legends books are, while impressive, not the best thing he's done. Both Canon, and Legends, he's still far beyond Rey and Kylo, even in Raw Force power alone. Rey and Kylo, while I don't doubt they're badass, aren't supported enough to last in a proper fight against Vader nor Luke.
Luke shaking a stardestoryer in canon happens before he meets yoda it’s a feat based off raw strength before his training. But again none of that translate into the films it never has. Rey and kylo might not be as skilled and likely wouldn’t beat either of them but the doesn’t change that as far as canon goes they are both stronger then Luke who was stronger then Vader.
Most of Rey and kylo’s feats are in the films as there is very little extended Material on them, the vast majority of Luke’s/Vader’s feats and every single one that shows raw power are in extended material. There is no black hole controlling stardestroyer shaking wave holding backing feats in any of the movies why do you think there would be fore kylo or Rey?"Rey and kylo are above both of them but just like either of them we don’t get to see that in the movies as the movies don’t show off and never have." Most of their feats are shown in the films though. So, what you're saying is either contradicted by this, or was just wrong to begin with.