This is from the book The South Was Right Chapter 9.

State’s Rights and Constitutional Liberty - INTRODUCTORY COMMENTS

The central theme of this book is that the Northern majority used unconstitutional, illegal, and immoral methods to change the Original Constitutional Republic into a centralized national government that it now controls. This radical and revolutionary corruption of the original government changed the very nature of that government from a voluntary compact among sovereign states to an empire established by the Northern majority via the conquest of the numerical minority of the South. Because the states were sovereign, they possessed specific “rights” as a result of their sovereign character, thus the term “State’s Rights.”

As hard as it may be to believe, there was a time when states were sovereign and the Tenth Amendment was a valid and honored part of the United States Constitution. The demise of state sovereignty leaves the citizen at the mercy of an all-powerful central government. In the following chapter we shall trace the origins of the attack upon state sovereignty and observe the struggle leading to the War for America.

State’s Rights and Constitutional Liberty

According to Chief Justice Salmon P. Chase, United States Supreme Court 1864-73, state sovereignty died at Appomattox. As surprising as it may be, we agree with his assessment! Our differences are that while the Republican chief justice was celebrating the conquest of this great Southern principle, we, on the other hand, lament the death of the Constitutional Federal Republic. It is unfortunate that “conservatives” refuse to recognize the fact that the death of the principle of state sovereignty caused a radical transformation in the very nature and character of the resulting government. They insist on living in a fantasy world as if the war and Reconstruction had no effect upon the constitutional nature of the current government. Establishment conservatives have a vested interest in maintaining this fantasy. They must continue to conduct business as usual, all the while pretending that the United States Constitution guarantees a limited central government and that the limitations imposed by the Ninth and Tenth Amendments are just as valid today as they were under the Original Constitution. To do otherwise would force them into an untenable position of admitting that the original compact that created this country (the Constitution) has been illegally altered and is no longer valid for the purpose it was designed. Admitting this, they would be forced to conclude that there is nothing left to conserve. Therefore, they would have to abandon their position and acknowledge defeat.

As Southern Nationalists we must remember that there is no magic in the word “constitution.” Even communist Russia had a constitution that guaranteed human rights and religious freedom. Yet, it availed the people very little! The current United States Constitution may resemble the original, it may be titled the same, it may contain certain identical clauses, but it does not effectively limit the power of the federal government, nor does it allow the people of the states an avenue to effectively defend their reserved rights when these rights are trampled upon by an all-powerful central government. Therefore, beware of your liberties for indeed there is no magic in the word “constitution”! Absent the sovereign state, the individual citizen stands naked and alone, unprotected against the might of a centralized federal government—a government that has assumed unto itself the right to be the exclusive judge of the extent of its own powers. What monarch has ever asked for more?

Read more here: Kennedy, James Ronald. The South Was Right . Kindle Edition.

In my opinion the whole Chapter spells out COUP by the North. And the that coup is what we have today. The chapter explains how states rights were usurped and the federal government gained control over the states.

Or you could say - "the South was right" - The original Constitution was spot on.