Native American tribes, weather, the tail itself, illness, loss of food or cattle, and the distance of the trail for the time people were walking.
One of the chief concerns for those that set sail on the Mayflower was how to organize themselves, especially with a variety of factions, once they got to the new world.
This wasn't a problem in England as you did what the King and his government wanted you to do.
The Mayflower Compact was ingenious, then, as it allowed for a structure where people knew the rules of the game and allowed for decisions to be made.
I think the answer to that is being bias
isreal is the arab minority in population