He suspended Habeus Corpus.
He “detained” the Maryland legislature so that they could not assemble to vote on secession.
He sent troops to occupy Kentucky so that their legislature could not assemble to vote on secession.
I ask you, is THAT the behavior of a dictator?
Was Jefferson Davis a dictator?
On your third point, you are dead wrong. Kentucky declared its neutrality in the war (in the beginning, at least). It refused to allow either Union or Confederate troops into its territory. Lincoln respected the neutrality, knowing how important Kentucky would be in the war and wanting it on the Union side. The Confederacy did not respect the neutrality, however, and Confederate troops under Gen. Leonidas Polk entered Kentucky and occupied the town of Columbus, saying it was a military necessity. Davis refused to order Polk out of Kentucky, and the result was that Kentucky became very Pro-Union (3x as many Kentucky men fought for the Union as for the Confederacy)