Redemptive anti-Semitism is a theory expounded by Saul Friedländer.
According to Wikipedia:
he maintains that Nazi anti-semitism was distinctive for being “redemptive anti-semitism”, namely a form of anti-semitism that could explain all in the world and offer a form of “redemption” for the anti-semitic.
In his book The Years of Persecution, he explains:
Whereas ordinary racial anti-Semitism is one element within a wider racist worldview, in redemptive anti-Semitism the struggle against the Jews is the dominant aspect of a worldview in which other racist themes are but secondary appendages. (Page 87)
And that:
Redemptive anti-Semitism was born from the fear of racial degeneration and the religious belief in redemption. ... Redemption would come as liberation from the Jews - as their expulsion, possibly their annihilation.
Does this mean that redemptive anti-Semitism means the Germans would 'redeem' themselves after getting rid of the Jews? That they are saving themselves, hence anti-Semitism is excusable? What are they 'redeeming' themselves from?
How is redemptive anti-Semitism any different from the anti-Semitism that came before? (Which, according to Friedländer was religious anti-Semitism and non-racial anti-Semitism, the difference being 'a solution to the “Jewish question” was possible within society in general for the non-racial anti-Semite, whereas the only solution was exclusion from society in general for the racial.' (Adapted from page 82)) It sounds similar to racial anti-Semitism from my perspective.