Draper's point is not about the legitimacy or virtue of the Bible. Draper's point is that we were fooled by false teachers.
In the first sentences of the OP, he states that "ones do not have the right perspective" and "We have usually been taught by bad teachers , or ignorant."
He is discussing the quality of the teachers, not the validity of the Bible.
This thread is just Draper claiming to be the true teacher and that we should listen to Draper. He made the point (intentionally or unintentionally) that we were fooled by false teachers and that he can lead us to the truth about the Bible.
It all seems too familiar.