Can you give some specific examples?
That seems like an over correction to me and I think that it shows in the push to tear down monuments of great people in American history who were largely products of their time.
For example, it's hard to overstate how important it was that George Washington gave up the presidency. He set the stage for the peaceful transition of power in the US and even the world. But he also was a rich guy who owned slaves.
It's not nuance that's missing, it's the concept of duality.
The fact that this sort of dreck isn't widely debunked and ridiculed whenever it appears is kind of mind boggling. Yes, some very bad things happened. But by the same token, the founding fathers weren't B-movie villains doing bad things for the evulz!