Show me where secession was an accepted right at the outset of the Union, and where the process for doing so was detailed. Show me the instrument where the southern states were allowed to seize Federal property. Show me where Lincoln moved to take away southerners “right” to slavery before 1861. Do you also object to Washington using armed troops to put down the Whiskey Rebellion?
It’s interesting that a Southron like you sides with the Democrats who refused to accept the results on an election in 1860, as they did in 2000 and 2016.
There is so much inherently incorrect in this statement I have to borrow the comment from Wolfgang Pauli that you are "not even wrong."
The principle upon which this very country was founded is that People have a right "to dissolve the political bands which have connected them with another and to assume among the powers of the earth, the separate and equal station to which the Laws of Nature and of Nature's God entitle them".
Secession was not an accepted right of British colonies, nor was there a process in British law for doing so. The founders did not create such a right, they RECOGNIZED that this right, granted by God, already existed.
The right to leave a Union is implicit in our own nation's existence. We declared that we had such a right, the least we could have done was to recognize the very same right which we ourselves first declared!
I'm not from the South. My family is not from the South. We didn't get to the United States until 1900. I've never lived in a Southern State. To my knowledge, none of my family has ever lived in a Southern State.
I have no particular interest in the South, I merely recognize that they were within their rights to do what they did, while the Union (dominated by the power interests of New York) were very much in the wrong to go to war with them. ( A trade war which was fought over money, not slavery.)