I think it’s absolutely bizarre to somehow believe that your decisions should not be open to question by your descendants, or that the living have no right to judge the dead. I don’t think i’ve ever heard a more ahistorical, narrow-minded, self-interested viewpoint.
Admittedly, we need to take into account the totality of the circumstances in which historical figures lived, and understand the social, cultural, political, and intellectual contexts in which they acted, but the idea that we somehow divorce ourselves from any judgment just because we are separated by time is asinine.
I don’t care how culturally acceptable or ingrained holding slaves was in the United States during the colonial and early national period, i have no reservations about making a moral judgment about it, even though it’s well over a century ago.
Presumably, your ranting against this sort of historical judgment is based on the notion that, because their circumstance were so different from ours, we can’t properly understand their choices and hence have no right to judge them? If this is so, do you extend this prohibition to other cultures in our own time period? Do we, for example, have any right to condemn female genital mutilation, or modern examples of slavery? After all, the places where such things occur are probably just as culturally different from the 21st century United States as early nineteenth century America.
I’ve always found it difficult to know exactly where to draw the line when it comes to issues of historical and cultural relativism (and, as a historian, this is something i think about a lot). Different people are likely to make judgments in different ways, and to place different levels of importance on certain acts and certain types of differences. There will always be shades of grey, or issues where we don’t know whether to criticize or accept difference. But to make a blanket statement that the present has no right to judge the past is, in my opinion, profoundly misguided and even dangerous. Especially when you accompany such a position with the laughably arbitrary notion that WWI is in the past, and WWII is not.
May i suggest you read Confederates in the Attic by Tony Horwitz; you might be surprised at how NOT “in the past” some events really are.