Fallacies

When Whoopi Goldberg said "The Holocaust wasn't about race" and she clarified with the reason that both groups were white, was that a fallacy and if it was which one? I was thinking stereotyping, begging the question, etc. But I'm not sure.

Well, I would say it’s a definist fallacy as the claim depends entirely on the changing definiens for the term race. 

As the science of race as it was formerly understood has changed radically- even to the extent of obsolescence, Ms Goldberg admittedly described the Holocaust from a perspective of skin color and the objective morality of man’s inhumanity. There’s no falsity or deception because the former definition of race was held in popular vernacular for thousands of years until recently (and is still promoted on census and other forms)  and the latter is neither false nor deceptive.

Of course, Race as determined by skin color or otherwise is hardly a valid scientific classification anymore,  except in rare or specific genetic and ethnic-oriented medical diagnoses as in Sickle Cell anemia or Gaucher disease.

I posted a similar question recently about Justice Sotomayor and her claim that 100,000 children were in the hospital ill with Covid.  Dr. Bo responded that this was a Confirmation Bias, which I agree with.  

In this case, Whoopi clearly processes things in a way that confirms her world view in which only skin color matters in racism.  She was then reminded that Hitler killed millions of Jews and others because he wanted to create a master race of Aryans, so clearly racism is not limited to skin color.   

I agree with the prior answer that this is also a case of the definist fallacy.