And no one is forcing you to continue to cast aspersions on Conservative Americans--living & dead--with whom you happen to disagree on social, legal & moral issues.
There were many reasons why the Southern Conservatives wanted to leave the Union, their forebears had voluntarily adhered to. One of those reasons did involve tariffs; another involved a continuous stream of vilification of their behavior, motives & values, by people who often misjudged aspects of the Southern culture, of which they had no first hand knowledge, whatsoever.
While no one is above criticism, then or now; to maintain a voluntary association of honorable men, you need to be able to discuss things, involved in that association, without casting aspersions on each other's character.
Now, were the Confederate men at arms, entitled to recognition as honorable men--indeed patriots who strove honorably to serve American values and interests, as their lights led them? Consider how the son of a Union General, who actually far outdistanced his father's achievements in defense of American interests & values, i.e. General Douglas MacArthur in his farewell to West Point, equated the Confederate men at arms with the Union men at arms, as reflecting the noblest traditions of America: Duty, Honor, Country.
Between 1898 & MacArthur's eloquence in 1962, no one to the right of the Far Left in America, kept up the South hating rant that has been revived in the past half century--which you seem to embrace. John F. Kennedy, certainly not one who was in any sense a Conservative, honored two major Southern Senators in his "Profiles In Courage," that he published before being elected President.
As an Ohioan, I naturally take pride in the battlefield achievements of the Ohioans who played the decisive role in the terrible war (1861-1865); but that does not blind me to the heroism of the Confederate men at arms; nor to the legitimacy of their argument for the course they followed, in terms of the accepted "Law Of Nations," as accepted by the Founding Fathers, "four score & seven years," before Gettysburg.
Read Vattel, as did both the Confederates, as well as Washington, Jefferson, etc., earlier. He, as they clearly recognized that every people have the right to be the judge of their own internal affairs. In the Union the States gave up certain rights--they are specified in the Constitution. The right to secede is not one of those specifically surrendered.