Who said about American society the problem of the twentieth century is the prooblem if the color line?

W.E.B. Du Bois famously stated that "the problem of the twentieth century is the problem of the color line." This assertion highlights the racial divisions and inequalities that characterized American society during his time and continue to resonate in contemporary discussions about race and social justice. Du Bois, a prominent African American scholar and civil rights activist, emphasized the importance of addressing these issues to achieve true equality.