Thank-you for your own awareness. And thank-you for the other gentle reminder. Given how many supposedly "Christian" youth do not now their own scriptures and are often misled by things such as "The DaVinci Code", accepting all know to be fiction as if it were truth, it would seem unfair to expect a non-Christian to know the details regarding these scriptures unless they had become a student of their origins.

As you said, those who consider books such as the Gospel of Barnabbas as supposed to have ever been considered to be part of simply are showing their ignorance concerning this topic. One should not look too harshly on them.