The point about documentation is that you can't say the historical Jesus is not documented enough.

Whether you like the poetry of the Koran or not, it is wrong, because it has nothing to support its claim over six centuries later that Jesus did not die on the cross. The Bible is about truth, whereas obviously the Koran is not.

Just to let you know, you are getting an infraction for repeating that something in quantum mechanics happens all by itself even though you have no evidence to support your assumption. Naming processes in now way proves they happen all by themselves.

The book of James starts off with, "This letter is from James..." It is in keep with the personality of James, so there is no reason to think it is not him. The burden of the proof remains on you. You can take your obstinate attitude to anything, but you lack proof.

Scholars have cited various plausible explanations for what you think is a discrepancy. Let me know when you have read them.