This seems to be the specter of Guns, Germs, and Steel, a book that tries to explain the success of Eurasian empires by disease and domesticable animals.
Of course, the book is badly titled, as it has almost nothing about guns or steel. It should have been called "Germs, Germs, Germs, Some Animals with Germs, Some More Germs, About 40 More Unnecessary Pages About Germs." Still, given that it's oversimplified, popular, vapid, speculative, grandiose, self-congratulatory pablum, it's not bad as such. That is, it's an idea to think about, amongst other ideas, and a pretty good one.
However, it really don't deserve the let-all-superglue-out-tongues to Jared Diamond's puckered sphincter, a process normally reserved for the likes of Noam Chomsky and Rush Limbaugh. It happened to hit a sweet spot, giving very white people a way to think (or pretend to think) about Africa with thinking of themselves as racists. It was welcome because the old "damn white colonialists" idea was wearing thing, especially after all that fun Robert Mugabe had.