To be fair the West also stopped that and now invests billions in foreign aid, economic development, medical assistance, NGO's, and a whole lot more (to varying degrees of success)
I assure you the West has not stopped attempting to make African countries do what is wanted by force or subterfuge. France is perhaps the largest offender in this respect.
The West (and US in particular) has meanwhile done squat since making another mess in the middle east fighting for last century's resources.