If you are not familiar with Tim wise, he is a white man well known for his anti-racist speaking and writing. His book most people know best is White Like Me: Reflections on Race from a Privileged Son.
Osayande offers a sophisticated critique of Wise's anti-racist work suggesting (among several critiques) that Wise's work displaces people of color, providing a more palatable stage presence (because he is white). The insistence that white people need a kinder, gentler explanation reinforces the stereotype that people of color are non-stop angry (dangerous), and enables white folk in their continued efforts (both individual and systemic) to maintain a racist structure that upholds the very white privilege Tim Wise speaks against.
No need to paraphrase more; go read Osayande's excellent essay.
Immediately after I posted the essay, a few folks got back to me through email and messages, objecting that there IS a need for a kinder, gentler explanation of white privilege and racism, and that we will not reach people with an anti-racist message if we make them uncomfortable.