“...crime and violence as acceptable alternatives to civilized living.”
This sounds like a good definition of barbarians. And that is exactly what they are. They choose to be barbarians. They do not want the responsibilities of civilization. This attitude has been imported from one particular continent.
Idiotic comment. There is nothing genetic about barbarism. Members of all races have been at times prime examples of the type.
Read Theodore Dalrymple for commentary on the white English underclass, which has pathologies identical to those of the black American underclass.