Because the north and south was divided and when a new territory got added it sent them into conflict on whose side it was put on. I'm not 100% sure but I hope this helps.
Hobbes believed that a social contract was necessary to protect people from their own worst instincts. On the other hand, Locke believed that a social contract was necessary to protect people's natural rights. Locke believed that if government did not protect people's rights, they could reject it.
