Jared Diamond strikes me as someone who is occasionally correct by accident.
He doesn’t seem to understand sociology or anthropology all that much. His explanations, though not as bad as Gladwell’s, are too pat and too all-encompassing.
Also, more is accidental and contingent than anyone gives credit for, especially even scientists.
Read Diamond, sure. You’ll learn a few things. But like starting with Twilight, it should lead to better, truer works.