When you quote this particular passage from Adams, it shows that -you- are unfamiliar with one of the major themes of the war too. The northerners fought to preserve the Union, not to free the slaves. They --accepted-- the freeing of the slaves because it weakened the power of the rebellion.
Adams suggested something that anyone even generally familiar with the record knows is false, and you went for it hook, line and sinker.
Walt
Adams has suggested nothing. What he has done is show beyond ant doubt that the war, as far as Lincoln was concerned, would not be fought over slavery.
Of that, I see you freely admitt.