Should morality be solely based on religion

Is there such a thing as a social structure that constrains individual action, or is society nothing more than a figment of our imaginations?

Restricting immigrants from entering a country may be based on what belief?  

Why did the medicine lodge creek treaty fail to bring peace to west texas? a. native americans protested the sale of weapons on reservations. b. supporters of the treaty face discrimination in their own communities. c. the united states government and native americans both refused to fully carry it out. d. the united states government prevented its military from entering reservations.