Clearly confusing legacy with responsibility.  Given the exponential math that drives the size of one's family tree, we all descended from people who have done terrible things.  Some people's ancestors are just more famous than others.  

Indigenous First Nations used to go to war with one another all the time and commit all sorts of terrible atrocities.  But nobody is holding indigenous people who are currently alive responsible for the crimes of their predecessors.   And nor should they.  But what is good for the goose is good for the gander, so you can't hold white people accountable for the actions for previous generations.

This sort of inter-generational victimhood claptrap may be fashionable in academia these days but in my view it is complete garbage.