Abraham Lincoln was a tyrant who didn't care about slavery.
If you only focus on the compromises he made along the path to abolishing slavery, it would seem he didn't care, but if you look at his actions as a whole I think it's pretty obvious he cared a ton about ending slavery and deserves a lot of credit for making it happen.
I think this is the quote people use to attack him:
If there be those who would not save the Union, unless they could at the same time save slavery, I do not agree with them. If there be those who would not save the Union unless they could at the same time destroy slavery, I do not agree with them. My paramount object in this struggle is to save the Union, and is not either to save or to destroy slavery. If I could save the Union without freeing any slave I would do it, and if I could save it by freeing all the slaves I would do it; and if I could save it by freeing some and leaving others alone I would also do that.
But leave off the next sentence:
I have here stated my purpose according to my view of official duty; and I intend no modification of my oft-expressed personal wish that all men everywhere could be free.
Before he was elected he was a well known anti-slavery activist.
While he was running he was attacked politically as an abolitionist (although it's debatable whether he actually was one or not).
He signed the Emancipation Proclamation (basically an executive order that freed millions of slaves), worked to help 13 Amendment get ratified, supported recolonizing Liberia so that freed slaves had access to a safe place to live, I could go on and on.
The civil war was not about slavery. Lincoln didn't free a single slave, it just made all US citizens equally enslaved as chattel property.
"If I could save the Union without freeing any slave I would do it, and if I could save it by freeing all the slaves I would do it; and if I could save it by freeing some and leaving others alone I would also do that."
http://www.abrahamlincolnonline.org/lincoln/speeches/greeley.htm"I will say then that I am not, nor ever have been in favor of bringing about in any way the social and political equality of the white and black races, that I am not nor ever have been in favor of making voters or jurors of Negroes, nor of qualifying them to hold office, nor to intermarry with white people . . . . I as much as any man am in favor of the superior position assigned to the white race."~ Abraham Lincoln, First Lincoln-Douglas Debate, Ottawa, Illinois, Sept. 18, 1858, in
The Collected Works of Abraham Lincoln vol.3, pp. 145-146.
"Free them, and make them politically and socially our equals? My own feelings will not admit of this.... We cannot, then, make them equals." -- Abraham Lincoln, "Lincoln's Reply to Douglas," p. 444
more:
https://americanstalin.com/https://undividednation.us/the-emancipation-proclamation-didnt-free-any-slaves/http://www.outpost-of-freedom.com/Lib30801.htm