How were Jewish WW1 veterans viewed in Germany during Hitler's rise and afterwards?

As Claudia Koonz recounts in the Nazi Conscience, even if the mainstream of German opinion (indeed, of European opinion in general) was mildly antisemitic, the vast middle section of German society would have respected the sacrifices of German veterans. That is in spite of a propaganda campain by the Ludendorff-Hindenburg high staff during the war to smear the Jewish contribution by accusing the Jews of hiding from the war in desk jobs. This campaign became the target of angry reichstag inquiries after the revolution and would have been distasteful to many Germans. That said, many would have bought and spread the myth, too.

I think the best expression of this sort of ambivalent antisemitism with regards to Jewish veterans is the 1933 intervention by Hindenburg that prevented Jewish war veterans from losing civil service jobs, when all other Jews were being kicked out. This was the mixed era of Nazi rule, when Hindenburg could still have dismissed Hitler and before race war ideology had fully sunk in, and I think it fairly represents the mainstream of German opinion in the late 20's and early 30's. The Jews were too powerful, it was believed. But perhaps they could still earn a place in the Fatherland.

By contrast, in 1942, Christopher Browning in his book Ordinary Men describes a member of the order police appalled at having to deport a Jewish veteran to a death camp. That didn't stop him from carrying out orders. By this time, most Germans believed the Jews were truly a threat to Germany, veterans or not. Moreover, institutional pressure and enforced antisemitic policy had normalized violence against Jews to the point that it was natural to treat them as totally alienated from the German state and nation - veteran or not.