In the Heart of the Sea

Something is bothering me. In the book, In the Heart of the Sea, by Nathaniel Philbrick, a true story about the tragedy of the Whaleship, Essex, there is something disturbing--cannibalism. It's not disturbing because of the cannibalism. That is heinous, enough. No, it is the very humane, even (I dare say), Christian way, they tried to approach the act. They prayed about it. They prayed not to have recourse to it. But they looked upon it as a Christ model of self sacrifice. They ALL agreed to participate. They ALL agreed to offer themselves up so that the others may live. It seemed a very Christian thing to do.
At the end, they chose straws. The one with the short straw was shot. His dead body gave the others life so that they lived to be saved.
...........some people think we Catholics are cannibal-like in eating the Body & Blood of Jesus.
Of course, we're not cannibals eating Jesus. That's not what disturbs me. It's the abomination of cannibalism being compared to acting like Jesus. You can't take a life to save a life.
They didn't always draw straws. Most of the men died, anyway, and they ate the dead.
Another thing--how come they never thought of using the dead as bait, to catch fish. Throwing the dead, overboard would have resulted in the fish eating it, anyway. Right?
Ugh!