Apparently too many people function on moralizing defense so the default options for them on any past historical event are either ashamed or proud.
And if I do moralizing myself, I would say the better option of all would be just seeing things as something that happened. But that would feel rather uncomfortable, because then you would have to face your own limitations. You can't be proud to dismiss the negatives. Or feel ashamed to assure yourself you will not make the same mistakes in the future.
Which, reminds me of people who cursed Freud for not being woke enough 100 years ago therefore caused harm for a bunch of people. While the simplest explanation would be, people don't know what they don't know and we try our best to learn as we go. But then, to accept that people make mistakes frequently, you will have to accept you are not perfect too.