Jon,

The rationale for the Hitler theme is very compelling:

“We are not promoting Hitler. But we want to tell people we are different in the way he was different.”

In
their defense, other names may have been taken such as Mussolini’s
Family Style Italian Restaurant and Stalin’s Steakhouse and Cigar
Bar.  Of course, if they were really being an authentic Hitler
restaurant, it would be vegetarian fare.

Without getting too serious (although I guess I might be), let
me say that anti-semitism around the world is reaching new lows. 
Jewish population data is disturbing (see how Hitler was “different”).   These are scary times.