Life is short, ride a horse
for those who might be interested:
The direct question, when posed, was answered when NY was considering it's ratification of the Constitution. At that time it was proposed:
"there should be reserved to the state of New York a right to withdraw herself from the union after a certain number of years."
A vote was taken, and it was negatived.
Elliot’s Debates: Volume 2 | Teaching American History
Historian Amar goes on to explain the pivotal moment of agreement:
"But exactly how were these states united? Did a state that said yes in the 1780's retain the right to unilaterally say no later on, and thereby secede? If not, why not?
Once again, it was in New York that the answer emerged most emphatically. At the outset of the Poughkeepsie convention, anti-Federalists held a strong majority. The tide turned when word arrived that New Hampshire and Virginia had said yes to the Constitution, at which point anti-Federalists proposed a compromise: they would vote to ratify, but if the new federal government failed to embrace various reforms that they favored, "there should be reserved to the state of New York a right to withdraw herself from the union after a certain number of years."
At the risk of alienating swing voters and losing on the ultimate ratification vote, Federalists emphatically opposed the compromise.
In doing so, they made clear to everyone - in New York and in the 12 other states where people were following the New York contest with interest - that the Constitution did not permit unilateral state secession.
Alexander Hamilton read aloud a letter at the Poughkeepsie convention that he had received from James Madison stating that "the Constitution requires an adoption in toto, and for ever."
Hamilton and John Jay then added their own words, which the New York press promptly reprinted: "a reservation of a right to withdraw" was "inconsistent with the Constitution, and was no ratification."
Thus, it was New York where the document became an irresistible reality and where its central meaning - one nation, democratic and indivisible - emerged with crystal clarity."
Conventional Wisdom--A Commentary by Prof. Akhil Amar Yale Law School
Yes. "In toto and forever."
That said, considering the major reason for the secession of the rebel states and the war that followed - the preservation of the institution of slavery - there is zero reason why the Confederate flag belongs anywhere outside of a museum or on private property.
“To do evil, a human being must first of all believe that what he’s doing is good" - Solzhenitsyn
"...with the terrorists, you have to take out their families." - Donald Trump