Again, it's a thought experiment. If you don't want to engage with it honestly, then just don't. Repeated attempts to mold it into a different thought experiment is dishonest I think.
The thought experiment is a person in isolation who is provided with food water and comfortable temperatures but does not have social interaction with other life forms. Could that person commit an immoral act?
That is how I understood your conditions
Yet you state a person who is lost in the wilderness should search for water (which is provided in the thought experiment)
Or the person is not confined which means that person could wander out and about, chat up various people and return to the isolation at will.
You have repeatedly changed the terms or conditions to evade my explanation of how a person could be immoral entirely, all by himself.
I will point to the Book Of Job
Although he could interact with society, Job's story is basically man alone in providence.
That is also the basis of the story "To Build a Fire."
Job most certainly could commit an immoral act or a moral act.
Job did not need any person, place or thing to commit an immoral act.
He could simply curse God, which is despair.
The point of those two stories is that man is alone in whatever natural circumstance provided.
As I said, no matter where you are, there you are and the only person making you is you
In "To Build a Fire" the man was arrogant.
In the Book of Job, Job was innocent