i pretty much agree; i've always jokingly stated that the universe was made by TJs.
personally, i know feelings are sometimes useful, and i can remember many a times where they have helped me out of what would otherwise be a sticky situation (P gets me in trouble). that being said, i think that "feelings" are perhaps a wrong label for this. there are some "feelings" that i would not put as traits to F, but rather as traits to, say, P or S/N. like passion for instance: i don't believe passion is derived from F, but from P. whenever i get inspired, i get extremely passionate. and with that passion, i can create something artistic.
besides all that, i think many people (including NTs) are either lying to themselves about their feelings or ignoring them. feelings work in the spur of the moment, but if ignored, they will pass (likely held in a suppressive state).
also, synarch, i strangely agree with the quote in your sig. it defines a part of me well.