Yeah, but so far whenever the brilliant White Afrikaners get to our shores, it's like Immigration brainwashes them into SJWs. Look at what happened to Elon Musk. He left because he saw that the **** was going to hit the fan once H.W. Bush became president, but once he made his money from Zip2 and PayPal, he was too brainwashed to fight the establishment. Now he's making up a bunch of ******** about how he left South Africa because he refused to serve in the Apartheid Army. Maybe we'll get him back; even Trump was backing Clinton in 2008. Your trade is actually a pretty good idea, and a potentially good trade for both countries. A lot of the Nigerian immigrants that are coming over here are reasonably intelligent, but they always complain about the "racism" they never see and only here about from their high white hipster friends in Portland, OR, parts of Boston, Seattle, etc. I think we should just trade the Black African immigrants for the Whites in South Africa and everybody would be happy. South Africa would be able to set up an intelligence pocket like K-Lab in Rwanda but with better geography.
We could also bilaterally annex Poland for one day, and one day only, give them all US citizenship, and then let them move. Let's make Illinois a Trump state in 2020! If you're concerned about Poland becoming depopulated, we could then subsidize repatriation back to Poland once they get US citizenship and residency in a US state to vote. So many of California's absentee ballots are being filed by people in Mexico and Guatemala.