Stupid and problematic as the post-colonial national borders of Africa are, the world is largely stuck with them. Actually changing borders is tremendously diff

Stupid and problematic as the post-colonial national borders of Africa are, the world is largely stuck with them. Actually changing borders is tremendously difficult diplomatically, no matter how much justice is involved. Opening that can of worms can open up WWIII. Building the green wall can prevent a lot of war, and solve problems that affect the entire planet, not just Africa.