Well, look at African-African culture in the sub-Sahara. After the British, French, Belgian, Dutch, Portuguese and Germans gave civilizing the locals a shot in their quest for territory and plunder. It was relatively safe in major urban centers for about 100 years with just a few notable uprisings. A white man could safely walk the streets of Nairobi, Johannesburg or Lagos.
Now the continent is colonial free and is for the most part an artificially mapped series of hell holes which require packing semiautomatic weaponry to just live in peace day to day.
The American left via handouts and central control has in a few generations de-civilized a substantial part of urban America. A tragedy that few of them would recognize or acknowledge. The Obama/Holder/Jarrett triad squandered a singular opportunity to change the dialog, bringing back the school system which teaches morality and livelihood skills. Instead, they have made racism their credo and brought back the 'n' word to many who have forgotten when it was common or never contemplated its use.
That reminds me of an incident from decades ago, that better time, when "PC" did not yet exist. An incident between a young oriental female exiting a laundry, where she had picked up her stuff.
A black bum (the gentle word homeless was not yet everywhere) followed her along the sidewalk, pestering her for money, finally ending with, "Stop ignoring me! stop treating me like a "n!"
Her calm retort ended the incident, when she turned to face him and said: Then stop acting like one!"