And? Snoke was the leader of the First Order and the architect of the death of the New Republic. Claiming he didn't accomplish great, terrible things is just . . . wrong.
Complaining he was defeated because his arrogance let him be blindsided by his apprentice is, well, something Star Wars does a lot. The finale of RotJ, particularly.
The end of ESB is not Luke's lowest moment, nor when he's closest to falling to the Dark Side. That's the final fight with him and Vader. Where he almost loses it, twice, trying to kill his father, because he loses himself to his anger for a moment. You really can't miss this, because the Emperor calls him out for it both times.It's one thing to struggle with the dark side. Even in his darkest, lowest moment (end of Empire Strikes Back after finding out his father was a murderer, Han was maybe dead), Luke remained hopeful by Leia and his remaining friends' sides. The Last Jedi Luke was a man in the twilight of his years stripped of all hope, joy and kindness. Even Yoda in Dagobah in more depressing times was still hopeful for the future and could instill hope and wonder in Luke as well. Luke was unpleasant. He might as well have been wearing a bath robe and shaking his fist at Rey.
That's literally all we saw of the kid in question. Also, most of what you're talking about here you're making up. There's no indication you need tons of training to pick up a broom with the Force. Indeed, we're shown time and again that you don't. That doesn't mean the canon is wrong, it means your assumptions are.Jedi took in children who were force sensitive. Even if we say the kid holding up the broom was force sensitive, it doesn't jive with the film's narrative. Becoming a Jedi is akin to the training and discipline required to be a samurai. A force sensitive kid with no training is at best someone who can occasionally move things with their mind.
Why would you think that the Force is created by being Jedi? They're just one particular religious order, with one particular interpretation of what the Force is about. They (and the Sith) are not the only such interpretations or paths.Luke established the Jedi were dead, and should remain so. What significance does a force sensitive kid have other than to either try to turn the Jedi into something it is fundamentally not (super heroes or wizards if you just BELIEVE?) Luke's gone. The Jedi way is a relic. Unless Rey is a fool, she's not going to try to re-create The Jedi Order, and risk repeating what happened to Luke. You can't have it both ways. You can't establish that Luke is perfectly in-character when he's saying the Jedi were flawed, then end the movie showing a force sensitive kid, for what? It's a red herring.
They show the kid Force Pulling the broom to remind us that the Force is still everywhere, in everything, and all this Jedi v. Sith stuff is fundamentally irrelevant. The Force won't stop existing if the Jedi and Sith die. It won't change, at all. It will still be just as present, and people will still be learning to use it.
Similar stuff exists for Snoke. You're refusing to consider it because it doesn't line up with your hate for the films.