Back in the 1970s, I didn't really know anything about Jews. I didn't know that most of the actors, actresses, and comedians were Jewish. I didn't know that Hollyweird was owned and operated by the Jews.
My only knowledge of Jews was having read the book The Hiding Place when I was a teenager. And I didn't understand why anyone would dislike Jews.
The only Jews that I knew personally were the doctors and lawyers who worked with my dad. All I knew about them was that they were very wealthy.