but Lincoln at least would have tried, despite the backlash, to insure black suffrage and land reform. Indeed, it was his support for black suFfrage that was the final provocation for his assassination. Booth was there in the audience, and turning to a friend he said, "That means n**ger citizenship. That's the last speech he will ever make."
And since land reform would have benefited landless southern whites as well as blacks, there was at least the potential that it would have received some white support, which was a prime reason Lincoln wanted it extended to poor whites, even if they had fought for the rebels.
President Johnson actively opposed both black suffrage and land reform. His very first action after assuming office was to remove all seized rebel land from under the authority of the Bureau of Refugees, Freedmen and Abandoned Lands--"abandoned lands" being the plantations owned by rebel slave owners. The reason Johnson was finally impeached was because of his opposition to the progressive Republican program of reconstruction, a program Lincoln for the most part supported. After Johnson's trial in the Senate his removal from office failed by a single vote.
Lincoln's "charming anecdotes" masked an incisive mind that was acutely attuned to the political realities of the day. One demonstration of this was his masterly use of published editorials to sway public opinion. An account of his PR efforts can be found in Stephen B. Oates, "Abraham Lincoln, the Man Behind the Myths." Mark R. Neely's "The Last Best Hope of Earth" is also pretty good, as is James McPherson's "Ordeal by Fire: The Civil War and Reconstruction." David Blight's "Race and Reunion: The Civil War in American Memory" is good on the compromises with racism that doomed Reconstruction and led to the institution of Jim Crow.
Of course we'll never know what might have been, but we do have a pretty good idea of what was. Johnson's ascendance to the White House was an unmitigated disaster. It could hardly have been any worse under Lincoln.