If any work of sci-fi involving time travel goes on long enough, there’s always the “Let’s travel back and time and kill Hitler” premise. But time and time again, the theory goes, that doing such a thing might seem noble, but might actually be impossible even if time travel were a possible, real thing.
Read more here on the many, many ways science fiction has shown the broad ramifications of trying to kill Hitler with a time machine
Rule 34 doesn’t even come close to this. In the 1960s, as many Israelis and Jews around the world were beginning to come to grips with the atrocities of the Holocaust, one of the ways some dealt with the trauma was through pulp pornographic Nazi-themed comic books called Stalags. These comics were never on full display, but nonetheless, they became best sellers throughout Israel.