My vote for the most evil and neurotic human culture goes to the Yanomamo Tribes of South America. These thoughly nasty people were first discovered by white men in the 1950's. They spend their days snorting drugs, praying to their gods, planning war, murder and rape.
Steven Pinker wrote that 44% of all Yanomamo men have killed someone. Killers are held in high esteem, having on average three times as many wives as those who have not killed. So much for the old-wive's-tale that man in his "natural" state is benelovent.
Here is an excerpt from a piece written about the Yanomamo, by Professor Michael Moffatt, at Rutgers:
"But the village still lies ahead, heard but not seen through the jungle. He and the missionary plung through the foliage and walk into the village for the first time (for him), and see . . ..
a dozen burly, naked, filthy, hideous men staring at us down the shafts of their drawn arrows. . . Immense wads of green tobacco were stuck between their lower teeth and lips making them look even more hideous, they had strands of dark-green slime dripping or hung from their noses. We had arrived, Chagnon explains, at the village while the men were blowing a hallucinogenic drug up their noses. One of the side effects of the drug is a runny nose. The mucus is always saturated with the green powder and the Indians usually let it run freely from their nostrils . . .
The Yanomamo recognize the missionary, calm down, lower their bows and arrows, and go back to their hallucinogene-snorting. But why so nervous a reception? Chagnon finds out later that the Yanomamo of this village have sneak-attacked another village the day before, killing a few men and dragging off a few women, and now they're a little worried about a counterattack. (They're taking hallucenogens to contact religious spirits who help them in times of crisis).
This turns out to be the standard form of Yanomamo warfare -- sneak attack, kill a few men, and abduct a few women. Plus, rape the women. Any woman abducted in war, Chagnon tells us somewhat casually later, is raped by all men in the war party, and then raped again by any men who "want to" back in the victorious village and then given to one of the victorious men as a wife. The Yanomamo don't do this with their own women relatives, however, about half the women they abduct originally belonged to them, as sisters, wives and daughters. The other half they rape."
Michael