sorry, i didn’t read your entire post, only the first few sentences, but i’ll try to reply.
i don’t see how luke isn’t literally being ‘the last hope’ when he’s facing down the two most powerful men in the galaxy alone.
i also don’t see why luke was the hope for the galaxy and not for the jedi. i’ve always interpreted it as the latter.
i’m not being able to translate my thoughts into words well enough, so sorry about that, but meh