More German than the Germans

Originally, the comment was a "common sneer aimed at people" who had "thrown off the faith of their forefathers and adopted the garb of their Fatherland".

By the twentieth century, the German Jews had reached a state of Bildung und Besitz (i.e., cultivation and wealth).

Thus, by combining German bourgeois practice and Jewish heritage, they formed a German-Jewish identity that balanced integration and tradition.

Kurt Singer (born 1885, died 1944 in Theresienstadt concentration camp), was a conductor, musician, musicologist, and neurologist.

She wrote that her family kept a kosher home, attended synagogue, and was a part of Berlin's tight-knit Jewish community.

Julius Hirsch, who was convinced the Nazis would not harm him as he had fought valiantly in the Imperial German Army for four years (for which he had been awarded the Iron Cross) and had played for the Germany national football team.

Fritz Haber, a German-Jewish chemist who in 1918 received (together with Carl Bosch) the Nobel Prize for Chemistry for the invention of the Haber-Bosch process, a key ingredient for the production of modern fertilizers;[12][13] It is estimated that one-third of annual global food production uses ammonia from the Haber–Bosch process, and that this supports nearly half of the world's population.

However, Haber, a known German nationalist, is also known for his work weaponizing chlorine, and he led the team developing gases used for chemical warfare in World War I.

Fritz Haber , whose work in the sphere of WW1 chemical warfare was later used to develop Zyklon B
Czech caricature from 1904.
Translation:
Offended.

Have you read? We, Germans, are not the pure-blooded race?!
– Who says that? If that donkey saw us two, he would know the appearance of the Kerndeutsch (core German) race!
In Bohemia too, Jews were perceived as trying to become more German than the Germans; they mainly spoke German.
A pin with the slogan Gott strafe England (may God punish England), created by the Jew Ernst Lissauer
Julius Hirsch , player for the Nationalmannschaft , World War I veteran decorated with the Iron Cross , deported to Auschwitz in 1943