Why do some people not accept Bible evidence even after asking for it.?

When people mock that Christ never lived, many arrogantly ask for evidence. So people with historic knowledge go beyond His 1st century followers who wrote of Him and died for the truths which they witnessed, and direct them to Tacticus and the 1st century Roman Jewish historian Josephus. Yet it changes nothing for them because they will not accept any evidence. Earlier, I wrote of the Dead Sea scroll of Isaiah (Greater Q scroll) which was proven to be written before 100 BCE, for those who claim all prophecy was written after the fact. Photocopies of the entire text can be found all over the net- in it's entirety, and the originals (still in existence since the 1970's discovery) have been thoroughly examined by scholars to declare their originality and origin. Nevertheless, someone so very angry against this truth wrote it was partial, not legible, and implied church fraud- that people can say they say anything. Wow! I've read them and they are very clear and available for anyone who has more interest in truth than stubborn bias.