To me it started to fall apart here;
"The fundamentalist “bows down” to the work of his own mind: his own interpretations, his own doctrines. Does he not?
Our own interpretations of words all too easily become our own “idols”, for the ingrained tendency of the human mind is to confuse our own understanding of words with “the words themselves”; or, when it comes to scripture, to confuse our own understanding of “God’s words” with His own understanding of “his words”; or, worse still, when it comes to God himself, and to Life itself, to confuse our understanding of God and Life with the Truth Itself.
That is the quintessentially fundamentalist mistake: to interpret words, and then attribute absolute authority to one’s own interpretation of those words, under the guise of “just saying what the words say” (be they the words of the Bible, the Koran, the Constitution, Marx, or the Baha’i Writings)"
That describes why the Baha'i Faith is not Fundamentalist in this aspect, as it is does not follow an interpretation from our own Minds, but from the Universal Mind given of by Baha'u'llah. Written and sealed in Plain Language.
Now all Faiths will have Fundamental Belief and this has been explained;
"...From these facts and premises we may conclude that the establishing of the divine religions is for peace, not for war and the shedding of blood. Inasmuch as all are founded upon one reality which is love and unity, the wars and dissensions which have characterized the history of religion have been due to imitations and superstitions which arise afterward. Religion is reality and reality is one. The fundamentals of the religion of God are therefore one in reality. There is neither difference nor change in the fundamentals. Variance is caused by blind imitations, prejudices and adherence to forms which appear later, and inasmuch as these differ, discord and strife result. If the religions of the world would forsake these causes of difficulty and seek the fundamentals, all would agree, and strife and dissension would pass away; for religion and reality are one and not multiple." Abdu'l-Baha : Foundations of World Unity
Love is also Fundamental;
"Question: Is peace a greater word than love?
Answer: No! Love is greater than peace, for peace is founded upon love. Love is the objective point of peace, and peace is an outcome of love. Until love is attained, peace cannot be; but there is a so-called peace without love. The love which is from God is the fundamental. This love is the object of all human attainment, the radiance of heaven, the light of man." Abdu'l-Baha : The Promulgation of Universal Peace Part 1
Regards Tony