Tears We Cannot Stop is thorough, incisive, and convicting, as good sermons are. Dyson explains whiteness from the perspective of someone who has had to get an advanced degree in whiteness and its violence, in order to survive this world. He lances the wound of racism so that we as a society can (hopefully) heal. When someone else is more expert on you than you are yourself, it can be hard to digest, but the fact is that Dyson is right. And we should listen to experts even when it's difficult.
My only complaint about this book is that as a non-religious person I found some of the religious references and preaching cadence jarring, but the quality of the content is so great that I'm only knocking off half a star. And I do think it's appropriate to examine racism in the context of religion, since religion and racism are two huge factors that shape our minds.
White folks, if you read one book about race in America, make it this one. But like Dyson himself would tell you, read more than one book about race! Read lots of books by black authors--he provides a reading list in one of the last chapters, along with many other action items that are clear and straightforward, though not necessarily easy, to follow. It's time for us to do this work and eradicate white supremacy.