That’s your opinion. In their eyes Lincoln destroyed the Republic because he wouldn’t let the states secede.
They could have fought against the Government, instead they decided to tear the Union apart. Lincoln was a softy. Jackson would have hung the traitors in 3 months.
Lincoln converted the Republic from one based on CONSENT to one based on force, threats and violence. He effectively destroyed the original Republic the founders created and erected an empire in its place. As Lee pointed out in his correspondence with Lord Acton:
"I yet believe that the maintenance of the rights and authority reserved to the states and to the people, not only essential to the adjustment and balance of the general system, but the safeguard to the continuance of a free government. I consider it as the chief source of stability to our political system, whereas the consolidation of the states into one vast republic, sure to be aggressive abroad and despotic at home, will be the certain precursor of that ruin which has overwhelmed all those that have preceded it."
Reflect on where we are today. A Leviathan in Washington unrestrained by anything. A Levithan which tramples on the constitutional rights of citizens with impunity. A Leviathan which constantly meddles abroad, maintains military bases in scores of countries and which gets involved in constant foreign wars. A Leviathan which has racked up debts we will never be able to repay and which only ever goes further into debt with every passing year. Lincoln paved the way for this.