Racism is not merely one sin among many; it is a radical evil that divides the human family and denies the new creation of a redeemed world. To struggle against it demands an equally radical transformation, in our own minds and hearts as well as in the structure of our society.
Brothers and Sisters to Us, U.S. Catholic Bishops, 1979.
Open Wide Our Hearts: the enduring call to love - A Pastoral Letter Against Racism
United States Conference of Catholic Bishops 2018
USCCB committee against racism website with recommended readings and tools.