So instead of appealing to black farmers in other black countries or appealing to black american farmers, they do this?
If minorities can run Africa, I really do think it might be possible for black americans to take over the levers of power in the US.
Appealing to Black American farmers to do what? It wasn't a shortage of local labour just corruption and lack of skills AND HEAVY SANCTIONS... they took the farms back and didn't farm all of them but they were also basically blocked from world markets. Zimbabwe money had the highest inflation rate in the world. White supremacy is a global system. However that doesn't take away their responsibility. They failed. The military coup was probably western orchestrated and now they have paid the oppressors for stolen land.
If the Zimbabwean people stand for this then who are we to protest for them? This is where we are. You can't force anyone to stand up for themselves
Now your idea of appealing to Black American farmers wouldn't work because in theory they would be coming there to govern over the locals which is still a problem. These people should have been competent enough to sustain their own agriculture production. They have failed in many ways.