One reason we, the South must secede is because of slavery. The north wants us to free all of our slaves because they think it is "morally wrong", but they don't understand that without slavery our economy will crash, and everyone in the south will be pennieless.
Another reason we should secede, is because of our cultural differences. Those northerners who live in the comfort of a modern urban world have no idea what it is like to live in the agricultural south. they only think of themselves and their own interests.