>>>A rightful secession requires the consent of the others, or an abuse of the compact, absolving the seceding party from the obligations imposed by it. (Madison, 1832)<<<
Right on, James Madison! According to you, the day the U.S. Government abused its compact with the Southern states, secession became a right (and, of course, a duty)!
Thank you so much for your quote by Madison, Non-Sequitur.
So what abuses of the compact had the US government committed when South Carolina announced it was seceding? That means you can't list anything Lincoln did or anything they thought he might do. Now, what were the abuses so great they abrogated the Constitution?