What you are describing is radicalization. People who are doing fine don't get easily radicalized. Why are they being radicalized then? Because they are not doing fine. Why are they not doing fine? Because of the colonial legacy and France supporting the status quo by propping up corrupt oligarchs/dictators in many parts of Francophone Africa.
By instantly jumping to Russia/Wagner you are merely assisting radicalization by further antagonizing Africans. The USA tried to pin everything that went wrong since 2016 on Russia, did it fix anything? Look at any poll for 2024 and you shall have your answer.