While Ach-To is in the conversation, can we talk about “It was fear that kept me here”? I know I’m just parroting Nerrel’s video, but ever since he pointed it out I haven’t been able to stop thinking about it. Luke was kept there by shame, and a genuine belief that the Jedi are a bad thing. It’s a hard thing to reconcile with TROS’s conversation, but I think “it was shame that kept me here” and “what are you most ashamed of” (in a Rey Palpatine cut, of course) would make a lot more sense. Not that I have a good way to implement that or anything.
No. He feared he’ll only make things worse by making a difference to the galaxy, he caused Ben Solo’s fall and if he creates more Jedi more of 'em will turn to the dark side and more children taken from their families (referring to the aforementioned Jedi) would be killed and more destruction would be brought (i.e. the entire Clone Wars).