One word: bikers.
In Germany, German criminals often join OMCG's. And in the USA there most likely are criminal bikers (and not all members of an OMCG are criminals) that are of German descent. Anything resembling a solely ethnic German criminal society, no that doesn't exist. But any demographic has its criminal element. Germans are no exception.
Bikers, of course.
I just had another look at the ethnic groups and it just looks like ethnic groups from more humble beginnings get involved in OC and I guess the Germans are not from humble beginnings or economically challenged.
