Ok I don't know where to start...
Provide evidence for your claims.
According to modern historians a man named Buddha did exist.
Impossible, you're asking us to prove a negative.
All books are written for a reason, but I'm skeptical that a few Jewish shepherds in the Middle East, two thousand years ago were contacted by God, and ordered to write this book. I could go a lot deeper with the bible but for the sake of this argument we'll keep things light.
Wow, that's perhaps the least Christian statement I've ever heard, if there is a hell we'll probably see you there.
No it's a matter of a threat of eternal damnation or the extremely unlikely gift of eternal bliss, so yeah, not a big deal.