Jewish customs, culture, the language, garbs and clothing — all too foreign to the average American?

Also too much confusion — the difference between Judaism, “Jewish”, the Torah, Yiddish, Sephardic vs Ashkenazi Jews, “jew” or “jews”, Judea, Israel, Israeli etc? Too many terms. Also, semetic, semite, anti semite, anti semetic?

There have been many films, Hollywood and beyond about how sad the Holocaust was etc ,,, but still,,, the average American, and Protestant Christian doesn’t really seem to care?