What I'm pointing out is that it's not the guns that make the society polite. Sub-saharan africa is a vast conglomeration of countries and tribal societies, bigger than the US and Europe combined, and there you are calling it an 'exception'.
And nice job dodging someone trying to help you be less 'baffled'.
I would still be curious to hear exactly what yaix was trying to say. Your assertions don't necessarily cast any light on what they had in mind.