Sure, a lot of that may happen since their self sustaining practices are long forgotten. But pieces of their civilization will revert back over a longer course. White countries aren’t exactly nice, they hate the actually colored folks. They just want their resources so they can boost themselves up to play king/god/moral police. And they do it from the shadows, it barely makes sense for this relationship to work without a level playing field where they see each other or care for each other as humans. It’s a huge disconnect that was never patched up.