Lincoln was by far the most empathetic and inclusive President. This passage in his 1858 Ottawa speech is representative of his behavior as President:
That powerful forces determined to undermine Lincoln's election and create chaos in place of the acceptance of the democratic process in no way renders Lincoln "divisive." The division rests entirely on those who could not reconcile themselves to the will of the people as a whole.
I agree whole-heartedly. Obviously, it was the South that started this whole dreadful business. Blaming Lincoln is shooting at the wrong target.