> *"I will say then that I am not, nor ever have been, in favor of 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; and I will say in addition to this that there is a physical difference between the white and black races which I believe will forever forbid the two races living together on terms of social and political equality."*
He didnt, he killed them because he thought keeping southern whites on the tax plantation was worth killing 1.5 million whites. The emancipation proclamation was an attempt to start a slave revolt and swell the union's numbers, but it failed pretty miserably.