the way US and British media report about Angola in particular makes me suspect that they want state failure as a desired outcome.
1) The US and British media never report on Angola.
2) Why would they want a state failure? The Angolan government has a lucrative relationship with international big business. State failure would be bad for the bottom line. You think the West wants to bring down Angola because 40 years ago it feigned non-aligned Marxism? Hell, even back when they were actively feigning non-aligned Marxism, Chevron and BP and Exon were already in bed with the MPLA and trying to restrain the Reagan administration.
The Economist reports fairly often about Angola. UK publications are my sources of most of the info about the economic development of the country. Granted, the only mainstream American media that reports anything at all about Africa is the NY Times, but by US media I broaden my description to include US documentary producers like Vice and such.
I disagree with the second paragraph.
The oil Chevron extracted in those days was used to fund Savimbi -- if he weren't there, then Chevron would not have been allowed to operate there. And to the broader point: nearby DR Congo barely functions as a government outside the capital and the big cities, yet multinational and Chinese mining companies still operate there.