From that first link
Early travellers recorded travelling often for days without seeing any human habitation. Commercial farming started in the 1890’s on what was for the most part virgin land. There were no roads or railways, there was no electricity or telephone, there were no fences, boreholes, pumps, windmills, dams, or irrigation schemes; there were no cattle dips, barns or other farm buildings.
These first commercial farmers had to discover how to contend with predators that killed their livestock plus other animals that consumed their crops and how to control diseases, pests and parasites of livestock and crops that were foreign to them. From this starting point, agriculture developed faster than it had anywhere else in the world.
From the second link.
The government sustained independence by improving expenditures on healthcare, education and infrastructure.
1.7 million people, 408,000 of those being women and 935,000 of those being children, lack the access to safe and clean water. Within rural areas, only 50% of water pumps are functional
To repeat
in 2008, life expectancy within the nation reached an all time low of 37 years old, as opposed to age 61 at independence in 1990
There seems to have been some vapid thought in the liberal democracies and the Africans themselves that the white farmers just waltzed into a garden of eden and they pressed the print button and it simply carried on printing money.
As Zimbabwe has proven and South Africa seems determined to prove, this was absolutely not true. The raw materials were there, fertile land, excellent climate, plenty of rainfall and plenty of space. What it needed was decades of hard backbreaking work then an attention to detail in farm management learned in the highly competitive European farming communities.
Whilst I do not condone, in any way, the attitude of the farmers to the locals black population, there was also a real problem. Lack of education, lack of ambition, in fact they lived in paradise with land that could support their needs. Child mortality was high but then child mortality had always been high and generated an attitude of "we can always make another one" attitude.
When white settlers came with their massively productive farms, food was still plentiful, OK they had to work a damned sight harder for it and the farmers got richer on the back of their labour. Eventually cities, education and healthcare got the local black population towards where the whites were. At which point they decided that there was no reason for the whites to have all this money from their land. So they took over.
Here it goes to pot quite a bit. Turns out the city locals thought about the same of their country brethren that the white farmers did. But they decided to do the 20th century the "African" way. Get rid of the interlopers, take their "wealth", then the African bit. Disburse it to the tribal leaders who helped drive out the whites. Of course these leaders were often little more educated than the farm hands, had no knowledge of farming or what it takes to operate a successful farm. Not understanding that fertile ground is only One of a series of ingredients. Fertile ground grows weeds better than anything because weeds are hardy survivors.
At the same time the healthcare is ensuring that child mortality falls to very low levels. But "make another one" is baked into the tribal consciousness.
And this is how we lose the ground which can feed the world and create starving, thirsty, multitudes who want the rest of the world to feed them because the rest of the world manages their own resources.
So a very long way round to say. "We need gene edited food". Because the places we could grow that food in the world cheaply and efficiently are full of starving thirsty people looking for someone else to solve their problems. Just as they looked to the white farmers they threw out.