Board Thread:Naruto Discussions/@comment-12509038-20140830021423/@comment-24531362-20140908151532

Yes. Everything you said about Jiraiya being a hero, a great trainer of men, and a savior to the village is correct. Doesn't change the fact that a godfather's job is to fill in for parental responsibilities in leiu of the presence of actual parents.

And yes, it is Minato's fault that Naruto is an orphan, because he died. He isn't culpable for the events that caused his death, but since parents dying is the one of the only ways for a kid to be orphaned (and because they definitely weren't gonna disown Naruto), it is Minato's fault. The villagers being cruel is their own fault, and the presence of Jiraiya wouldn't fix their hatred, but it might have helped Naruto to cope a bit better.