Who would die for a lie?
"Yes, many people have died for a lie, but they did so believing it was the truth. If the Resurrection had not happened, obviously the disciples would have known it. Therefore, they would not only have died for a lie—here’s the catch—but they would have known it was a lie. It would be hard to find a group of men anywhere in history who would die for a lie if they knew it was a lie."
This assumes the disciples were real, historcial people. Said disciples have never been confirmed to be real, historcial people. Same with Jesus.
Using the characters in the bible is no different than using the characters in Star Wars to prove that Star Wars is a historcial document.