It is very much hard to answer.
It was mainly because of how the North and the South of America had different lifestyles and economy's. You would be surprised to know that the Democratic party back then supported Slavery and the republicans dint support Slavery.
Plain Answer: Because of Slavery, Way of Life and Different Economy. The Democratic Party would do anything to keep themselves supported.
Granted sought of full freedom, citizenship & constitutional equality?
The simple answer to your complex question is NO. This is assuming that you live in a country where there are good laws (remember that history is full of bad governments that implemented bad laws) and that law enforcement is effective. Simplisticly, you should only ask yourself this question when your or your families life is being threatened and law enforcement is not around. Your response must still be within the constraints of your laws or you will find yourself in hot water. I'm not even going to try to discuss the ethics and morals that can apply as the situation can vary immensely. Keep it simple - don't operate outside the law, rather fight against unjust laws.
The only member of the " Narvaez " group to return to Spain after being a prisoner of the American Indians was Cabeza de Vaca.