So what's the big deal?

[Silver]

I've actually heard Christians say that Christianity is the one true religion because it's the only one which has the sacrifice on the cross and the resurrection.

Considering that plenty of other cultures had son's of god born of virgins who were sacrificed and then resurrected three days later, most Christians do not know squat. As usual. The main reason, I have come to learn, for them believing that their religion is the one true religion is that all others were inspired by satan and thus false religions.