That's my biggest gripe with Episode VIII.
Here you have a kid who had to live a hard life on some crappy desert world just so he could grow up safely to be used as a tool to repair the damage to the galaxy that the Jedi let happen on their watch. To that end, they were even willing to lie to him about his father. Burden my ass, Yoda was just hoping that Luke would have successfully killed Vader before he figured it all out; And that's pretty shitty even for a Jedi. Can you imagine the burden Luke would have had to carry once he realized what he had done.
No. Instead Luke quickly forgave Yoda and Obi-Wan for their transgressions and found another way. A better way. His way. He saw that his father was in trouble. He had fallen in with a much more powerful Force user and was now completely in the grip of the Dark Side. Did he go in saber swinging? No, he came bearing something that the Jedi had long since forgotten about and Palpatine probably couldn't even conceive of: Love.
There's no such thing as a sure thing but Luke knew that deep down Vader loved him. That stuff on Bespin about ruling the galaxy as father and son wasn't just bullshit and if push came to shove, they were still family and there was no way that Anakin was going to stand there and watch his son be tortured to death right in front of him. If Palpatine had a weakness it's that he never had kids.
Jump ahead some thirty odd years, in the middle of the night. Luke has a premonition that his nephew will fall in with a much more powerful Force user and find himself completely in the grip of the Dark Side. So, for the fuck of fucking fuck, he decides the best course of action is to take one of the darker, more controversial pages from the Prequel Trilogy, go into the tent and chop up a child; His sister's child. And in the poorly written process, ironically becomes the cause of all the new damage to the galaxy.
Yeah, that must be the character growth everybody has been praising. A man so stupid he would make the exact same mistakes as the people who's mistakes he had to fix in the first place. That is why Rian Johnson did not, does not and never should belong anywhere near a Star Wars project. It boggles my mind that more people can't see this and when someone tries to dismiss my comments as wrong, it only emboldens me to speak up as one of the few voices of reason.