[Non-Sequitur]

Can we honestly expect to get a true and unbiased picture of who Lincoln really was from such works?

Much better to go to Lost Cause mythologists to get a true picture, is that it?

[Neoliberalnot]

Nope, go to the archives containing letters penned by Lincoln. You can read what he personally put in print, not what the PC crowd says he wrote or wished he said—see the difference? The object here is to seek the truth, not the spinning done by the media.