Self determination must also consider the rights of those who do not want to secede, as well as those who want to secede.
Self determination permits people to leave the country if the laws and customs do not suit, and they have no majority to bend the laws and customs using legal means. It does not permit a minority to destroy the Union.
Unless you think, like Calhoun, that your minority is more important than my majority. In which case, your minority will tend to be perpetually unhappy. Better to leave the country, and seek one where you will find people more accepting of your mental illness.
Sophistry.
It does not permit a minority to destroy the Union.
So any time a majority has the votes, it is moral to enslave the minority? You are on the wrong site. DU would better fit your political ideology.