John is shipwrecked on a raft. He heads towards an island. He approaches, he sees coconuts and small animals, he knows he can make a life here. He also sees another man pulling his raft onto the beach.
John gets to the beach and meets Bob. Bob says he got to the island first and owns all the property. John says that's BS. Bob shows proof he was born there. John wasn't going to go along with that system when he thought Bob just washed up, and he's thinking about living on an island where he is going to be Bob's financial slave. Bob sees his hesitation, and says his ownership is backed by power: in this case, a fancy gun and a solder who washed up yesterday and agreed to work security to pay for his own room and board (half of it, anyway).
What should John do?