I completely agree that things have improved a ton since the 60's, but let's face it, dealing with racism would totally suck and the less common it is, the more likely we are to scream bloody murder.  That's a good thing.  
Ms Wente goes all in, as usual - "But the narrative that racism is a pervasive scourge just won't let go. Too many people have too much invested in it."       
???  
What a load of hooey.