Of course I understand the US Constitution. It's patently clear that you don't like all liberals (and you're acting like one now).
States DID and DO have the right to secede. Read you history and Federalist papers. Each state is a sovereign entity (the main reason the Civil War was fought, but you probably imagine it was slavery) who collectively and specifically grant limited powers to the Federal government.
Thanks to Lincoln, the damage was done and the Government reversed things, stealing power from the states.
of course they did, silly. They legally and peacefully seceded from the Union and formed their own country. It would have ended there had the Union vacated the southern states they were trespassing in. When they didn't, they had to be forcibly removed and poof... The War of Northern Aggression began.