Hans Leip Jewish?    Who knows where that absurd idea came from?

Singers seem to want to make their presentation as dramatic as possible, it seems, and don't let facts stand in the way of this.

Among uncounted other arguments Leip was not Jewish, in 1942 Hitler gave Leip the "Kriegsverdienstkreuz" Class 2, for his "steady promotion of the push to the East, since the start of the war". My guess is this is due to the popularity of "Lili Marlen", especially when broadcast from Belgrade.

He was in fact no supporter of Hitler--(though involved in none of the conspiracies against him--), but   there were quite a few non-supporters who were not Jewish.