A store, a city, a country, a continent? It all ends the same when negroes are involved. It'll be even worse when you add mooslim to the mix.
A fair barometer of intelligence might be a list of cities and countries decimated by the negro plague.
The negro has +1000 generations in some of these locations(interupted by a few hundred years of caucasion prosperity).
And yet only +10 generations to ruination in others.
the short list...

Portugal - Once a 16th century world power with colonies around the world - moor/negro slave interbreeding after 400 years has left it with a 40% illiteracy rate. The most backward country in Europe. Slow mongrelization without a shot being fored.
Haiti
Rhodesia now Zimbabwe
Angola now ndongo
Mozambique
Northern Rhodesia now Zambia
Somolia Morovia, Liberia


South Africa - 15 year negro violent genocide of Caucasions, When we had Apartheid in South Africa for 42 years there was hardly any crime at all.
......................Apartheid.........14 years of Black rule
Murder................5 monthly.........66 monthly
Rape..................7 monthly.........4700 monthly
Rape of White women...5 yearly..........300 monthly
General theft...........................7000% increase
UN has given South Africa a Genocide Watch rating of 5 out of 7 for black on white Genocide.

Portugal
Somalia
Kenya
Detroit - 82% negro population
Chicago South Side
New Orleans
Memphis
St Louis
Atlanta - negroes are 54 percent of the population, responsible for 100 percent of homicide, 95 percent of rape, 94 percent of robbery, 84 percent of aggravated assault, and 93 percent of burglary