This had to do with the North during the war. Not the south. He wasn't president of the South.
He suspended Habous corpus and the Consitution in the North.
again this has nothing to do with the South.
Lincoln was not a dictator. He did not suspend the constitution. He even ran for reelection in the middle of the civil war.
Lincoln did suspend Habous corpus for certain newspaper publishers, who reported troop movements. And the supreme court chose not to here any of those cases, while the fighting was going on.
Do you even know what a dictator is? A dictator is an elected official who takes totalitarian control over the nation that elected him. If your argument that he was not the President of the south is true, then by definition he was not a dictator. That said, the Southern states ratified a little thing called the U.S. Constitution in the 1780s. Based on that political fact, I think your argument that Lincoln was not the President of the South is pretty weak. Lincoln fought to preserve the nation in part to support that very Constitution that those states signed and that he swore to protect.