Its not genetic. Its societal. If your friends and family abuse the public with raucous disrespect, you might do it, too. If other groups are socially afraid to stand up to you, it will also encourage you to continue rude behavior in public. Its definitely nurture, not nature.
The people who published this graph may beg to differ with that statement.
The entire black world is dysfunctional and prone to violence more so than most whites or most Asians
And Ive seen and experienced most of it
Tropical Africa was isolated for a very very long time much like aboriginals who are even more dysfunctional as a rule
Is all this cultural or geographic or genetic?
To me its a combination and over time isolation and cultural caused a genetic lag in mental acuity
And yes plenty of blacks surpass the white or Asian mean
Yet tropical African IQ both there and their descendants here despite a rise to middle class for many is quite laggard compared to oriental Asians and Whites
Its not something folks today wish to deal with and that has tied our hands
I blame Nazis ....,they made it nigh impossible to deal with inconvenient civilizational truths in an honest productive way
We just punish ourselves and hope for everything to be ok despite thst we have made everything so much worse from Johannesburg to Memphis
Whites cannot fix blacks....the onus is on them
We are not responsible for how they behave here or in the Congo
Let me look for my 1964 movie....its anti colonial but despite that tells a very cogent story.....replete lessons i learned personally in Sierra Leone , Haiti , Jamaica , Zambia and elsewhere