I saw your Coal Black article, good points, and I am surprised that the studio won't release it; surprised that they haven't gone the disclaimer route like WarnerHV/Paramount/KFS did with the Popeye packages.
  I just got  Popeye the Sailor vol III last week.  This one features most of the best of Poopdeck Pappy. And we see how Paramount one-upped Disney by using FOUR identical nephews to complete a sentence instead of just three. Also included are Scrap the Japs, You're a Sap Mr Jap, and all or most of the wartime white-suited Popeye pictures produced by most of the same animators after Paramount gave the Fleischers the sack in '42, and changed the studio name. Significantly, as long as Max Fleischer ran the place, Popeye never fought an enemy identified by nation, German or Japanese or anything else. That changed when Paramount took over and they wanted their cartoon studio to be Famous.
  Even with the war on, I don't get the sense of meanness directed at the Japanese as I see in all kinds of content (directed against anyone you can name) today. Sure, the creators wanted to humiliate the Japs and make them look stupid and perfidious. But never in a 1930's or 40's cartoon, have I sensed an intent-to-do-harm such as we saw in the recent two-year-plus partisan political season.
 Cartoon racial and ethnic stereotypes evolved from the ones used in Vaudeville, making fun of, and having fun in an America filled with a panoply of new immigrant arrivals (and old) which were familiar to US city dwellers across the spectrum, but especially the eastern seaboard centered around New York City, where the film and animation industry established itself prior to moving westward to California.