Lexicus
Deity
That said a fun line was brought up with regards to feeling shame for what your ancestors did. I go back and forth on this, because we also value the things our ancestors (arguably) did right. And as you get more mainstream (or centrist, really), people like to extol virtues of past society, but its faults are disregarded along the lines of "it was a different time" or "you're not responsible for what happened then".
I mean, directly, no. But if we're going to praise the things they got right, then we should also burden ourselves with remembering what they do wrong. And I think that's probably a bit different to castigating yourself over it or whatever, but it's also something that society as a whole doesn't like to do. Probably because it equates the burden with the blame, or the self-castigation, or similar. I don't know. I just think we have a moral obligation to remember the good and the bad, so we can repeat the former, and avoid repeating the latter.
There was a phrase in an essay I enjoy, where the author referred to the anti-political-correctness crusade as "twist[ing] language to make the inconvenience of conscience sound like a kind of oppression." I think that is a good way of talking about the whole "can't blame past people for their crimes" thing, it's not that most people who make those kinds of arguments genuinely believe that there is nothing wrong with, say, Thomas Jefferson owning slaves, but that they just don't want to be inconvenienced by negative feelings about it.
I also think "the inconvenience of conscience" is just a really good phrase in general