It isn’t nonsense. He quotes reputable sources. You just don’t like it because it shows Lincoln as he was. Not a pretty picture compared to the “Saint Abe” crap that has been shoved down throats since 1865.
I got two problems with DiLorenzo. First is his misuse and ignoring of context to paint a wildly false picture of Lincoln. But I find even more offensive his single minded portrayal of a improbable monster, a depraved human being even beyond Stalin. I believe there is something to be said for trying to see the good also in your fellow Americans. For instance, even though Jefferson Davis was a an incompetent, slavery promoting bloody-handed tyrant, I gladly concede that in his personal life he was a devoted and honorable devoted family man who even tried to improve the life of his slaves. DiLorenzo’s portrait of Lincoln is children’s comic book mentality unsuitable for adults. DiLorewnzo needs to be writing about Lex Luthor and Superman.