That the leadership of the NSDAP had a bad conscience by using the Fylfot, was after its so called takeover shown by its explicit ban to interpret the meaning of the swastika. This would have shown the true meaning of the Swastika. The Swastika is a symbol of life and acceptance of life after death. The Fylfot finished Hitler off, as a sign of murder, and particularly the murder of Jews, and to drag it through mud in front of the world, of all things he himself had a Jewish grandfather. The spirit of his time, was extremely dark and demonic, that brought him and millions of people bondage and death, amongst them also many honest and faithful idealists.

A further study about a possible reason of his hatred against the Jews, can be found by F.B. Marby

On the one hand Hitler wasn't a German, his grandfather was of Jewish ancestry and was called 'Rotschild' (red-shield) bore Hitler's illegitimate Father, his grandmother was 'Schikelgruber' (in English it means 'septic tank'), The young "Schickelgruber" was later adopted and was then called Hiedler. His son called himself Adolf Hitler.
(How names can be deceiving after all)

Source: Friedrich Bernhard Marby
99 Months locked up in CC Dachau until end of the war.