I don't know what half these words mean

I have often argued that the Jewish people were shunned because they had (and obviously still have) a monotheistic belief system at a time when the rest of the world was polytheistic. This became a learned behaviour which has been perpetuated regardless of the fact that monotheism became the accepted theistic view.

I've never read anything academic on this thesis so maybe it's just a load of tosh lol.