Why would you be a disgusting person and let your father die needlessly instead of curing his cancer because of some deity you choose to stack all your cards on which probably doesn't exist?
Are you prepared to deal with a man who believes he's an Elite from Halo, a man who believes he's a very famous large lizard, and a man who believes the universe is made of squids?
Because that's what the Flood is all about. Welcome.