Latest episode vs. 1st season White Rabbit
In this last episode, What They Died For, when Jack, Kate, Hugo, and Sawyer are sitting around the campfire with Jacob, Kate asks “what if no one chooses?” Shortly after Jack stands up and takes the role.
Going back to White Rabbit, I find that episode intriguing, a young Jack is with Christian in the den getting scolded about the schoolyard fight. Christian relates a story of how as a surgeon he is able to make tough decisions, wash his hands of the grim situation, and walk away. He then tells Jack that he doesn’t have what it takes, and not to choose, because at the end of the day, when he fails, he won’t be able to handle it.
I think this is related to what we are currently seeing and perhaps Christian already knew that Jack would be faced with this decision (of becoming the island protector) some 20+ years in the future. Perhaps also, he knows that Jack fails at that role in the future and causes something bad to occur such as MIB leaving the island or the island being destroyed.