You can read here about the Holocaust and comic books: https://nypost.com/2018/04/30/how-comic-books-taught-america-about-the-holocaust/
I didn’t know anything about the Holocaust when I was a child in the 1930ies and 1940ies because my family was very poor and I could not afford comic books. When I did earn a little money by doing chores for the neighbors, I spent my money on movie magazines, not comic books.
The following quote is from the news article:
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Before high schools taught about the Holocaust, before there were dedicated museums and before “Schindler’s List,” kids learned about the horrors of Hitler from comic-book superheroes.
At a time when most adults considered such fare brain-rotting junk and the topic of genocide too taboo to discuss openly, the largely Jewish comic book industry was quietly educating a new generation about the Nazis’ atrocities. Comic books featuring superheroes such as Captain America and with titles like “Blitzkrieg” and “War Is Hell” — their covers splashed with exclamation points and sound effects — often tackled the deadly serious subject matter inside.
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