I totally disagree with the inferred premise that 'racism' is a white thing.
Call Prager and set him straight. Although he probably knows and understands too.
Well, since "racism" is a 20th century neologism with no fixed meaning, you are both right (using your definition) and wrong (using the narrative's preferred definition).
What you SHOULD be disagreeing with is using words with no fixed meaning at all.
There is actually quite a lot of racism WHEN you look at the Left.
Where else but the Left do you commonly find people openly advocating judging by the color of skin? The Klan or Aryan Brotherhood? Compared the numbers of leftwingers they could hold their meetings in a rec hall while the Left fills stadiums.
There is a difference of course. When the Klan or Aryan Brotherhood acts racists they nominally do so to keep people out; but, when the Democrats act racists they do so to keep people in, divided up on their little plantations/reservations where people are assigned to go based on their outward appearance.