Seriously?
Why are you fantasizing nonsense?
The Declaration says what it says and means what our Founders intended it to mean, not whatever you fantasize they might have thought.
The Declaration of Independence is:
The Declaration went to great lengths to make its legal and moral case that independence was not at pleasure or "for light and transient reasons", but rather a matter of total necessity -- a word repeated several times to insure the point is not missed.
Final point here: the United States did not go to war against the Confederacy because of secession alone.
Rather, the US went to war -- just as any country of that time would -- when Confederates began firing artillery at Union forces in Fort Sumter, forcing them to surrender.
So, a lot nonsense from our pro-Confederate apologists just doesn't correspond to actual historical facts.
Let me help you with this.
" to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, --That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it, and to institute new Government, laying its foundation on such principles and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness.
This is easy. The only thing required is "consent of the governed."
Once the "governed" have withdrawn their consent, they have a right to form a new government.
Basic freedom right there.