Lincolnism: the usual gang of leftist prescriptions and tactics to "improve society" such as federal income taxation then blatantly unconstitutional, the draft likewise, goody-twoshoesism satisfying New England Unitarian moonbats, totally ignoring virtually all constitutional restrictions on central government power, smashing the presses of the anti-civil war New York Daily News and jailing its editor, naval bombardment of the Five Points neighborhood of New York City against the Irish-American draft riots, suspension of the right to obtain writs of habeas corpus in peaceful portions of the US, expelling a sitting Congressman from the states remaining in the Union, gross violations of international law such as blockading ports in the CSA while claiming that the CSA could not leave the Union, seizing CSA Ambassadors Slidell and Mason (?) from the British ship Trent in international waters (which even Lincoln repudiated), illegitimately and unconstitutionally preventing perfectly legal secession by force of arms, depriving people of life, liberty and property without due process of law in violation of Amendment V, tolerating Sherman's barbarian March to the Sea, etc. Those would be a few examples.
If Lincoln were alive today, he would be a McGovern Demonrat. If Jeff Davis, Robert E. Lee, Stonewall Jackson, J.E.B. Stuart, Longstreet, Judah P. Benjamin, and the other gentlemen of the South were alive today, they would be Republicans. Lincoln was a radical whose anti-Mexican War rhetoric was ripped off by McGoo without attribution (This chamber stands knee deep in blood, blah, blah, blah...). The Southerners were gentlemen. Few histories or biographies lionize the North and with many very good reasons.
The best thing about Lincoln was the last (Father Abraham) year of his life when the once rabidly anti-Mexican War one-term congressman finally choked on the gore he had perpetrated. By the time he was shot, he was shot for his virtues and not for his sins at the demand of corrupt cabinet officers like Stanton for signaling that there would be no "Reconstruction" and therefore no grand graft opportunity.