The challenge is to have the Radical Republicans not only come up with the idea to deport (as opposed to other forms of punishment) Ex-Confederate soldiers and collaborators, but have the policy successfully be enacted. Where could they've realistically be sent to, and what sort've effects might this have had on post-War America and the world at large?
Where they go changes wherever that is, a lot, especially if they all congregate there.
I picked South Africa because well honesty, Stirling.
But now of course that was just my knee jerk.
There's also always Cuba.
If they go to Latin America they probably retain English wherever they set up and keep Confederate symbolism.
Because of course they do, look at this it's from Brazil.
Almost two hundred years later.
Alright so there's that, and the changes that brings to wherever. If there's a strong enough political push said place might end up having issues with the United States.
Now as for it, this won't hurt in the long run but it will in the short-term.
I'm afraid share cropping and all of its horrors of being slavery without slavery still persist.
I mean if, if the Radical Republicans keep power there probably not, and we see earlier equality.
If however a large influx of Midwestern farmers move down there, they probably go right on about business and unpleasantly usual.
The Midwest today is still pretty racist, the descendants of Southerners who left the south to go work in Midwestern factories have separate accents, culture, and basically even towns of their own because they weren't exactly welcomed and given the option to assimilate, this still persist today along with redlined neighborhoods.
Wisconsin seems like they still have Jim Crow in some places.
So I wouldn't count on them improving the conditions of their former enslaved fellow man. Some of them might be downright resentful and blame them for the civil war.
So America will still have it's racial issues unless this can be solved, best to NOT let the carpetbaggers move down there and rather focus on improving the lives of freed slaves. Which means today the south is very different, yet still similar. Foods wouldn't change much, but you'll have the descendants of confederates supprised that the south has familiar foods. They'll be taking that with them and adopting it.
This also changes music in America too, most of our rockabilly music came from black artist who were overshadowed by people who came along and white washed it and stole their sound.
Now not so much.
This also means deporting the Five Tribes of Oklahoma, that'll be a group that probably every now and then tries to sue the US or pressure their government into doing so on their behalf.
Oh and mostly it leads to an entirely different population of the planet due to the butterfly effect, there wouldn't be many doppelgangers of people from OTL there. Different wars, different settlement patterns, everything changes.