You're out of your mind if you think people will pay more in the long-term when there are or will be cheaper alternatives. Many countries in Africa are the next logical neocolonial maquiladora targets for cheap goods to feed the Global North.
"Many countries in Africa" don't have the infrastructure, manpower, expertise, supply chain, and other factors - and they wont have for the foreseeable future.
If you're talking about sweatshops making clothes and stuff, sure. If you're talking about anything more advanced, that requires factories, technology, complex production lines, etc, nope.
For the foreseeable future, things will just get expensive and/or be consumed less.
You'd be lucky if you get "only modestly quite more expensive" alternatives.
