You say, "His Emancipation Proclamation freed the slaves! That proves he was against slavery." Lincoln's words: "I view the matter (Emancipation Proclamation) as a practical war measure, to be decided upon according to the advantages or disadvantages it may offer to the suppression of the rebellion." He also wrote: "I will also concede that emancipation would help us in Europe, and convince them that we are incited by something more than ambition." At the time Lincoln wrote the proclamation, war was going badly for the Union. London and Paris were considering recognizing the Confederacy and considering assisting it in its war effort.
The Emancipation Proclamation was not a universal declaration. It detailed where slaves were freed, only in those states "in rebellion against the United States." Slaves remained slaves in states not in rebellion such as Kentucky, Maryland and Delaware. The hypocrisy of the Emancipation Proclamation came in for heavy criticism. Lincoln's own secretary of state, William Seward, said, "We show our sympathy with slavery by emancipating slaves where we cannot reach them and holding them in bondage where we can set them free."