I think that nearly all Americans are abolitionists presently. Or at least there are few who are pro slavery that will admit it.
From an ideological standpoint, the Confederates LOST the war. But we still have schmucks like Mark Francis who wants us to believe that all people of African descent are primitive and inferior.
However, nearly all the statues of Civil War heroes were erected decades after the Civil War was over, and they are nearly all of Confederate soldiers. The reason these were erected was to send a message to the former slaves and their descendants that the ideology of the pro slavery Confederacy was not ye dead and they had better think carefully about getting all uppity and demanding the same rights as White folks.
In my high school in NW Missouri, there was a long tradition at all pep rallies that the band would play "DIXIE" and when the students heard this, they stood up and posed with their hands over their hearts. This was in the late 1950's. Again, this was not in the Deep South. A majority of the original settlers at the time of the Civil War in that part of Missouri were Germans, and Germans in NW Missouri were nearly all opposed to slavery. You would not know this because by 1950, the Schneiders had changed their named to Taylor, the Schmidts were all Smiths, the Schumachers had all become Shoemakers, because it was not popular to be German or even fond of beer during the WWI/ Prohibition period.
The HS principal was a guy named Pulaski, and he forbid the band to play Dixie at all, because the local NAACP chapter had pointed out that this was offensive to the 22 out of 350 or so students in the high school.
For this, he was called a "damn Polack".