Bart Ehrman destroys Christianity in under 12 minutes.

[Jehanne]

It's a great video; anyone who watches/listens to this video cannot possibly have any confidence in "Biblical" Christianity:

 It's certainly not systemic as is claimed by Bart, that fact alone is disproved by the second century manuscripts that exist of Luke and John.

You need to clarify, though, that these are not complete manuscripts.  For instance, the P52 fragment from the Gospel of John is the size of a credit card:

https://en.wikipedia.org/wiki/Rylands_Li...apyrus_P52

P.S. In fact, here's a list of all New Testament manuscripts:

https://en.wikipedia.org/wiki/List_of_Ne...ent_papyri