They didn't import slaves who spawned black welfare communities. They don't and cannot understand the situations these neighborhoods create. The black people they know came to their country because they were motivated opportunity seeking individuals, speaking the King's English and all the rest who first of all wanted to integrate into their target countries culture.
If we subtract the gun violence in all of the black welfare communities, (LA, Chicago, Detroit, Pittburgh, Cincinnati, Cleveland, etc etc.) we would probably be in the top 5 of non-violent gun crime countries in the world.