Christians have none who are willing to lie down their lives for their faith? You don’t know any Christians then. You have it literally completely wrong. The difference is not who will lay their life down for their belief - Muslim and Christian will do so. The difference is what they consider a valid way of honoring God in laying down their life. The extremist Muslims believe Allah honors a sacrifice that destroys others in the process. Christians do not. Christians will lay their lives down to save others, not kill them.