No, it doesn't. The tendency today is to focus on the (necessary) limits of the Emancipation Proclamation, Lincoln's comments in 1858 (during a senate race in a state, Illinois, where free blacks couldn't vote), & his letter to Greeley—which only demonstrated Lincoln's awareness that saving the Union had to come first, that anything else was just fine words.

Fact is his administration begged, bribed & cajoled a reluctant House to pass the 13th amendment, abolishing slavery. That he didn't live to see it enacted is irrelevant. He did abolish slavery. And I think it mattered greatly to him.

Lincoln also favored negro suffrage & affirmed Sherman's Special Field Order #15. I can't find any evidence that he did so reluctantly, under pressure, but if he did, is it possible that he realized how unlikely making such a transfer permanent would be? He knew his war powers were on the verge of evaporating, & that Congress would be back in the drivers' seat.

Oliver Howard was appointed by Lincoln to head the Freedman's Bureau. Du Bois: "The Freedman's Bureau did an extraordinary piece of work but it was a small & imperfect part of what might have been done if it had been made a permanent institution..." Johnson vetoed the Freedman's Bill in 1866.

To assert that if Lincoln had lived there would be no Black Reconstruction Era is baseless. It was Johnson who cancelled Sherman's Field Order & ended the Bureau. True, Lincoln was no John Brown, but Brown sought only destruction; he wasn't responsible for the well-being of an entire nation.