The Government no longer had the consent of the Southern States, just as England no longer had the consent of the 13 slave owning colonies.
What the rest of England thought was immaterial. The Founders obviously regarded the right of states to secede from England as valid.
Baloney! The South was represented by the members of Congress, and their control of the Supreme Court. They just didn’t get their way and were willing to fight to prevail.
The Southern Democrats represented the politics of the Fugitive Slave Act, the Dred Scott Decision, and later Jim Crow.
In fact slavery was so important to the Southern Democrats that they seceded from their own party before the seceded from the Union. They refused to back Stephen Douglas when their party chose “States Rights” as a party plank, instead of supporting slavery. They backed John Breckinridge as a third party candidate, while threatening Civil War if Lincoln won the election.
All because of Slavery.
“The Founders obviously regarded the right of states to secede from England as valid.”
The Founders also provided a means by which the state governments could lawfully secede using the same authority and procedures that were used to accede to the United States. The Confederate conspirators refused to respect the sovereignty of the citizens, because they knew the citizens would not approve such a secession.