Garry Kasparov tweet:

[cab67]

6. Sounds like some US cities at certain points in history.

Parts of the Prohibition era come to mind.

An interesting parallel is how much of the organized crime violence in the US has been ethnic as much as profit-driven. From the 19th century, Irish, Italian, Jewish, Chinese, and other immigrant communities, along with African-American communities relocating to escape Jim Crow, had their undergrounds. They usually competed with each other. Indeed, part of the reason the Italian-American Mafia succeeded was its willingness to work with other communities - and that, in turn, is because Lucky Luciano grew up with a couple of Jewish kids named Meyer Lansky and Bugsy Seigel.

Russia is very diverse ethnically; it'll be interesting to see how that all shakes up in the next few years.