That's an excellent name for it. What I find especially frustrating about it is how it's dressed up in a search for objective truth. However, the only kind of evidence they want is the kind that proves racism. They never appear to search for evidence for the opposite proposition, that racism does not exist. That's always their given, their ground, their unquestioned assumption.
In the broader historical context, that's ridiculous. The US's history is enormously racist. We fought an entire civil war over whether black people were actually people. The racism denialists are in effect claiming that on some unspecified date in history, all of that racism evaporated and left no trace in heart, mind, or law. That's the proposition I think we should be demanding evidence for.