The "Yankees" didn't give a damn about "you" or "your" evils. (How old are you anyway?) Most didn't care about slavery one way or another. But thank God that at least a million of them cared enough for this nation to fight to save it from the slaveocrats. That they "saved you" from the Bannana Republic status that the CSA was rushing headlong into was an purely incendental effect of their sacrifices.