That is Nietzsche point, no one can “free” you from your suffering just you yourself.

On another note, Nietzsche, and this extends to basically every philosopher, they are not addressing people who have its most basic necessities not met for some reason, that is beyond their problem, a problem of the world, Nietzsche is not talking to a person who by forces outside his control cannot eat.

Finally, I would not say Nietzsche is rationalizing anything, this is a very problematic concept in Nietzsche philosophy and he and certainly anyone who has read him would frown at the mention of Rationalization or Reason for that matter.