Here it is:
You seem to think "Feelings" are by essence arbitrary and subjective. On the other hand, I would tend to see them as quite predictable, or else, there would be no such thing as psychology, sociology or neuropsychology.
Even if like I said, those values may vary within each new
Fi user, there are not random. And since they are a byproduct of context, I'd say personal experience affects them. There are objective reasons why they appear, how they are shaped and why.
Hence I find your whole analysis to be severely flawed by your own values (paradoxical, isn't it?

).
Illustrious one,
Feelings can be predictable when they are organized by our faculties of rational cognition. Most people have some competence in this regard and for this reason are predictable to a degree.
Quite simply, feelings if left to themselves will be completely whimsical. You must organize them, they will not organize themselves. People who lack competence in logical reasoning tend to fail to do this.
[Even if like I said, those values may vary within each new Fi user, there are not random. And since they are a byproduct of context, I'd say personal experience affects them. There are objective reasons why they appear, how they are shaped and why.).
You are absolutely correct that the feelings are not random becuase they are a direct consequence of the external stimulus. However, when Feeling is not disciplined by Thinking properly, irrational interpretations of the external stimulus ensue which leads to radically false beliefs. When I say they are random, what I mean is, the interpretation of the cause of the situation conjured by the Fi person has nothing to do with a cause a reasonable person would envisage.
For example, if I look at an Fi person in a stern fashion, the Fi person may think 'he hates me!'. If I were to ask them how they figured, they would provide fallacious reasoning. In most cases it would be the bare assertion fallacy, I feel this way, therefore it is. Or they would give a fallacious rationalization of the situation.
Thus, we all inevitably act out on our beliefs. Fi's in most cases have false beliefs about their situation and therefore appear random. Or in other words, they respond not to real world situations, but to an illusory view of the real world situation. They are random strictly in this regard, or their actions are not relevant to reality. It is difficult to predict their behavior because the conclusions they draw from their experiences are based on their subjective and irrational reasoning tendencies.
Such people have been very difficult to study for psychologists, and for this reason psychologists and sociologists insist that many studies need to be done on the same topic time and time again. Even re-done, one reason this is so is because we often lack a clear idea of what is going on in the minds of such people, exactly for the reasons I have mentioned.
[Hence I find your whole analysis to be severely flawed by your own values (paradoxical, isn't it?

).
Where do you see the expression of my values in my post? It must be up in your Ne-Fe fluffy heavens, as they are not to be found on earth!