It was the republicans that freed the slaves...
Democrats supported slavery then and still support slavery now. They just think people are too stupid to take care of themselves.
Yes, but they weren't conservatives.
They were called Republicans, yes. That doesn't mean it would be the Republicans of today who did it.
This mistake is made often. The Republicans were Lincoln's party and did support freeing the slaves, however, at the time, they were the liberal party and the Democrats were the conservative party.