The outcome of a war 160 years ago has utterly no relation to how a decision to secede would play out today. I use the word “process” in place of “whatever sequence of actions” might occur if states were to assert their intent to separate from the country. “Secession” might not even be an appropriate term - a resolution could be introduced, through all the correct and proper channels, for the United States to dissolve in an organized fashion, as the Soviet Union did in 1991. There’s really no point saying any political proposal “can’t” happen.
The outcome of a war 160 years ago has utterly no relation to how a decision to secede would play out today. I use the word “process” in place of “whatever sequence of actions” might occur if states were to assert their intent to separate from the country. “Secession” might not even be an appropriate term - a resolution could be introduced, through all the correct and proper channels, for the United States to dissolve in an organized fashion, as the Soviet Union did in 1991. There’s really no point saying any political proposal “can’t” happen.