The JBS had a long history of accepting and praising racial and religious bigots into the JBS as members, as officials, and as paid employees.
The JBS never “opposed Judeophobia” — which is why it was never able to attract any significant number of Jews into its ranks — as even Welch admitted in private correspondence.
Furthermore, the official JBS position on Israel was extremely hostile AND it also attacked and defamed Jewish fraternal organizations like ADL and American Jewish Committee.
Robert Welch and the JBS recommended and sold publications by UK conspiracy author Nesta Webster. She was an official in the first UK fascist organization and in 1926 she gave a speech entitled “The Need For Fascism in Great Britain”. For details re: how the JBS promoted her writings see:
https://archive.org/details/webster-nesta-the-need-for-fascism-in-great-britain-1926-12pp