So that was a "La-La-La-I'm-not-Listening" then!
And who said anything about Race anyway. To my mind it is more cultural.
But that doesn't mean that genetics and selective pressure might not be a significant factor.
The key to this IMO is the genetic/cultural heritage associated with living in large urban communities. Now, for sure, one can ties this to ethnic groups too. but the primary issue is urban living.
large, high population density towns and cities where people live their lives surrounded by total strangers are a very recent thing in terms of human social evolution. For most of our species time on this earth, we have evolved to live in small, semi nomadic, extended family hunter gatherer groups bound by kinship. And indeed, where any humans
not a member of this group are likley to be regarded at best as competitors, at worst as mortal enemies.
Urban living is deeply unnatural for Humans and I do not think it is at all unreasonable to suppose that a fair amount of "Domestication" through selective pressure imposed by laws and punishments (Particularly punishments involving execution, banishment or enslavement) has been necessary to allow modern humans to live in this deeply unnatural environment without killing each other as a matter or routine.
Now, for sure, there is going to be an ethnic origin aspect to this. but only as a by product of the cultural evolution factors.
For example, Asiatics have been living in large disciplined urban communities for a very long time and in a modern multi-national city. come very low in the statistics for random violent crime. Northern Europeans haven't been living like this for quite as long, so come somewhere in the middle of the stats. And people from central and southern Africa, who have by far the most limited cultural (And therefore genetic!) experience of living in large cities tend to top the list wherever such diaspora end up living.
Now, I dont know whether this theory is correct or not It is just something that popped into my mind when I saw pictures of the (Relatively peaceful surprisingly) Hong-Kong slums and observed that no European could live like that. We would tear each other to pieces within days!
Further investigation would be needed to either confirm or debunk it. But if course. Since even the very idea generates the inevitable "Racist" accusations, nobody will ever investigate the possibility.
So we will never know.
Which would be a shame if it turned out to be correct (Or at least a factor) since you cant begin to mitigate or solve a problem until you know exactly what the problem is.
And ignoring certain lines of scientific investigation simply because they offend peoples political ideologies is the road to ruin! It always has been!
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