In essence, the OP asked if INFPs regularly end up as "lovers of humanity" who are alone and don't seem to get along well with humans.
I responded in the affirmative. Then I provided a window on the "objective" psychological process leading to this state of affairs (as I conceptualize it). You are now providing a window on the interior or "subjective" rationalizations used to arrive at the same end.
I don't see a conflict here. The "objective" and the "subjective" are two sides to the same coin. Your input is quite useful in that it fills out the picture by providing the interior monologue which accompanies the psychological process.
Nor am I calling anyone a hypocrite (other than noting the obvious paradox of "lovers of humanity" ending up without any humans in their life). I take it for granted that INFPs who follow this process and end up alone are sincere in their motivations. If they end up in a paradoxical situation, it's because of the paradoxical nature of ideals and the solipsist tendencies of idealists, not because of any hypocrisy on the individual's part.
By the way, FWIW, I've chucked lots of people out of my own life. I tend to think of acquaintances and friends as fairly disposable. But these days I tend to do it more for reasons of moving on to a new stage in life and achieving new personal goals--for example, withdrawing from old sedentary social circles in order to get more exercise and spend more time dancing with my wife. I don't tend to feel that the old friends were abusing me in some fashion, and I don't feel (like the OP explains) that I need to keep humans at bay in order to love humanity. In fact, I usually build new relationships to replace the old discarded ones once I've achieved my goals.
There was a time when I thought more like the OP. But nowadays I think there's benefit in socializing for its own sake, and contrary to the philosophy of the OP I make a deliberate effort to keep other humans directly and immediately in my life at all times.
Oh well, thanks for your good input as always, Heart. I think I'll probably drop the subject here. The deeper one digs, the more speculative things get (especially for an amateur like me).