We say in the V'hi She'amda passage of the Pesach Hagaddah that in each and every generation there have been those who rose up against us to destroy us, but Hashem saves us from their designs. Is this literally true? Has anybody ever complied a list identifying who the Jews' major oppressors were in every generation? The focus here is on those who rise up against the Jewish people as a whole, not on individual antisemites. Or are we to understand "in every generation" more informally, like the colloquial "all the time"?
Moderator's note: Note that the question does not ask answerers to list oppressors. (That question is not suitable for SE.) It asks whether any commentaries on the hagada (or the like) have already compiled such a list. So concerns that the category "oppressors" is ill-defined or too large are irrelevant: they are good reasons not to compile such a list, but that doesn't mean no one ever did so.