In the best of worlds, this whole Northam (et. al.) issue would be an occasion to look at ourselves. How daily racism pervades the nation to this day, how learning about it is still discouraged or rejected, how even the information about "blackface" is lacking. We'd all have a heck of a lot to do getting a little more insight.
What we see, at least on here and in published opinion, is quite different, in many a case quite understandably so. Democrats look bad, and Republicans, having elected the most overtly racist goon to the highest office of the land, sigh in relief, if they're not gloating outright. For, since the other side has ugly all over them, by comparison, they look better. They still are the party that willingly and eagerly provides a home to racists, and panders to them to keep it that way.
Democrats, of course, see their electoral gains made in 2018 melt away, or prospects in 2020 vanish, and angrily demand the head of the scapegoat - who probably isn't any more guilty than they themselves are. The downside is, of course, as usual when judgment is being rendered before the facts are clear, and principles are firmly established, that a teaching moment is lost, squandered, and political expediency has the upper hand over genuine development.
No one, literally, escapes the lasting heritage, the American (arguably, the human) Birth Defect, in Condoleeza Rice's terms. Dealing with it is hard. I, for one, was most disappointed in Northam. Almost 35 years later, he hasn't thought about the whole thing, how that photo got into his yearbook. After so many years, he hasn't really come to terms with his own past enough to offer a compelling, genuine account of what and who he was, and what steps he took since. It just isn't that important, and never was, as is so often the case with the privileged class.