What is the author’s goal in this book? And what kind of effect does he want his book to have in the world?

Baldwin believes that one cannot understand America without understanding race. Yet this does not only mean looking at the experiences of African Americans, though this is crucial. Baldwin argues that the racial system in America (the history of slavery, segregation, and so on) has also shaped what it means to be white in the country. Racism stems from the false attempt to act as if one can return to an innocent world before slavery and ignore the consequences of history. Yet Baldwin shows in these essays that the fate of both black and white Americans depends on acknowledging how interconnected their histories are. The future of the country depends on this.

Thank you for the answer,i hope you okay with helping me with another question that goes -How does the author go about accomplishing this goal?