What I can't quite see is how the topic of this thread relates to the OP. Are you suggesting that Jesus was effectively comitting suicide by coming to Earth to die for our sins?
I think it is definitely the case that had Jesus died as the result of falling off a donkey he'd have had to do a lot more to convince people it counted for anything. One of the more disturbing aspects of christian faith is surely the emphasis put on Christ's suffering during the crucifixion, not to mention the fact that the lack of a crucifixion could have drastically changed the relationship between Jewish and Christian faiths.