Well said. After reading your comment and ruminating on it a bit, I think people handwaive the violent crime in Brussels since native Belgians (and possibly other well off immigrants) aren't very likely to live in Brussels city that's only 22% native Belgian and 78% foreign born.

I expect small cities and towns in the suburbs, where native Belgians are a majority, to have virtually zero violent crime, which would flatten out the crime spike of Brussels into good looking national averages.