it seems to me entirely POSSIBLE way back then to destroy whole books out of existence but someI always wondered if the central source labeled Q and it's writer was what the surviving followers of John the righteous now called Mandeans (sect of Sabians) called false texts written by what they labeled as a wicked evil woman.
They tell of burning that book of falsehoods, and Q disappeared, is said to have been burned out of existence.
christian apologists DENY the possibility and insist
that the "gospels" of the NT are, simply, entirely
accurate "copies" of books that existed at that time.
----as per some guy named EUSEBIUS