You can't make an exacting study of American animation from the 20s to the 40s, replicating character designs, movement, techniques, and backgrounds, then turn around and be like, "Well, we don't really know or deal with the politics of that era, we don't get into the racial aspect of it". You have to be into art history to do something like Cuphead, and to pretend you don't know or care about the era is a cop out.