Seriously...why does everyone think the world "would be fine" if there were only type X, be type X whatever it may??? The world would not be fine if there were only one kind of person, regardless what type. Anyway, I do not think the world would be perfect no matter what we are talking about - philosophy, religion, type, or any other criteria...We are talking about the human condition here, and human beings do NOT make sense, they do NOT function like machines and they are NOT perfect. So I wish you folks would stop trying to make people "work."
Be that as it may, probably the most "perfect" a human being could ever get has nothing to do with being extremely one way or another, be it thinking or feeling. A "perfect" human being would be "perfectly" balanced and have command over all eight functions. Since that is impossible - and this has been debated across many topics - "perfection" is impossible. But I certainly would not define "perfection" as stifling E, I, S, N, T, F, J, or P. It is accepting and loving yourself for who you are and finding someone compatible to yourself so that you can reach as much "perfection" as you can.
In my opinion, finding a partner or friends, for example is all about compatibility. It is finding strengths in other people that you do not have so that you can grow and develop.
Why is this BlueWing so obsessed with F? Hmmm? Could it be that he is secretly yearning for that which he has not yet mastered? His quest for the "other"? Could be.
But as BlueWing already mentioned, I am not about to start pyschoanalyzing this guy (I assume he is a man). Too much work, not enough benefit. Okay, rational cost-benefit analysis says, HELL NO! But it is just toooooo intriguing to let go.
He knows all about intellectualism, academia, and writing long diatribes about topics that are totally unreadable. But has he truly lost himself in another human being? Has he felt that he could trust another? Has he totally given up his ego and loved himself? Has he experienced the joy of creating stories and playing with a stuffed animal, letting go, and just acting like a total nut? Perhaps not. And in his quest for that which is totally foreign and appealing, he finds that it is truly what he wants...can't admit it, so he demonstrates it as repulsive.
Ahhhhh, how fascinating the human psyche is. But I would venture a guess that deep down in his unconscious self, BlueWing would love to know what it is like to be NF. He just needs to take the giant tree out of his...well, ahem, eye.