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.

Lack of information creates information through the senses, but to answer your question, a few of the problems you are raising is past the circle of meaning that these theory’s tried to circumscribe.

In response to the other answers you got, notice how you addressed with 19/20th century science, that is one of the reasons the empiricism failed along the way (it had a lot of problems even within its time) but the main problem that derives to from this perspective, especially to someone like you or me from the 20/21th is that Empiricism understand “data”, “objects” as a thing with meaning, we “extracted” knowledge from the objects, much of the 19th century philosophy was the transition and understanding that we Create data.

Now Hume is a bit of a more special case where we don’t learn things but by “experiencing” things we, in a non action base, derive knowledge from it.

This is all very complex and I’m trying to just give you a picture of the whole, if we go in specifics a lot more needs to be said and precised.

You are touching at the core of Nietzsche problems, his premise is that all life is suffering i.e, meaningless, the discrimination between the Übermensch and the common comes in when you have strength to go beyond this suffering, beyond this lack of meaning. So, if God’s Death (reason why life is meaningless) you are Responsable to give your life its Meaning therefore leaving this state of being “dominated” by non action by no meaning.

Now if the commoner is happy with non action that is the reactive side of life or the state of just being adrift without any meaning to Nietzsche that is the lowest a Human can possible get and there is a lot of things to say to that but I digress.

Anyway Nietzsche never proposed to talk to everyone or “most people” as often we see in his writings, he starts with, “this isnt a book to everyone but to…”

Just trying to elucidate some topics on Nietzsche philosophy and its “range”.